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TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics Question Paper Tentative Key Date of Exam 27-09-2019 &Session-FN Page 1 of 100 1 In spherical harmonics, if Ylm(θ, ɸ) are the eigen functions of L 2 , then the eigen values are : கோளஇசையயலல் , Ylm(θ, ɸ) என் பன L 2 ன் ஐன் ைோர்ள்என் றோல் , அதன் ஐன் மதப்ள் : A: l(l+1)← l(l+1)← B: (l+1) 2 (l+1) 2 C: l(l+1)← 2 l(l+1)← 2 D: 2l(l+1)← 2l(l+1)← Correct Alternative :- C 2 Which of these is not a characteristic of Poisson distribution ? (Given : p or q are success or failure, n is number of events, m is Poisson distribution parameter) இவற்ள்எபோய் ஸோன் பகர் வன்தனிை்சறப்பண்கசையோ. (p அல் ல q வற்அல்லகதோல் , n நிழ்ஷளின் எண் ணி்ச, m போய் ைோன் பகர்வன் அளஷரஎன் வோ்ப்பை்ள்ள) A: n is small and p is large n சயமற்ம் p வபரிய B: n is large and p is small n வபரியமற்ம் p சய C: p is close to zero, the distribution is J shaped p ஜ்யத்தற்அரோசம, பகர்ஷ J வவம் வோண்ை. D: entire distribution can be obtained from single parameter 'm' வமோத்தபகர்ஷ, 'm' என் றஒற்சறஅளஷரவோண் மதப் பைலோம் .

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Page 1: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

Post Graduate Assistants 2018 - 2019

Subject - Physics

Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 1 of 100

1 In spherical harmonics, if Ylm(θ, ɸ) are the eigen functions of L2, then the eigen values are :

க ோளஇசையியலில, Ylm(θ, ɸ) எனபன L2 –னஐ னைோரபு ளஎனறோல,

அதனஐ னமதிபபு ள :

A: l(l+1)←

l(l+1)←

B: (l+1)2←

(l+1)2←

C: l(l+1)←2

l(l+1)←2

D: 2l(l+1)←

2l(l+1)←

Correct Alternative :- C

2 Which of these is not a characteristic of Poisson distribution ? (Given : p or q are success or failure,

n is number of events, m is Poisson distribution parameter)

இவறறுளஎதுபோயஸோனபகிரவினதனிைசிறபபுபணபுகிசையோது. (p அலலது

q வவறறிஅலலதுகதோலவி, n நி ழவு ளினஎணணி ச , m

போயைோனபகிரவினஅளவுருஎனறுவ ோடு பபைடுளளது)

A: n is small and p is large

n சிறியதுமறறும p வபரியது

B: n is large and p is small

n வபரியதுமறறும p சிறியது

C: p is close to zero, the distribution is J shaped

p பூஜயததிறகுஅரு ோசம, பகிரவு J வடிவமவ ோணைது.

D: entire distribution can be obtained from single parameter 'm'

வமோததபகிரவு, 'm' எனறஒறசறஅளவுருவ ோணடுமதிபபிைலோம.

Page 2: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

Post Graduate Assistants 2018 - 2019

Subject - Physics

Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 2 of 100

Correct Alternative :- A

3 The number (100101)2 is equivalent to octal __________.

(100101)2எனறஇருமடிஎணணிறகுைமமோனஎணமடிஎண :

A: 54

54

B: 45

45

C: 37

37

D: 26

26

Correct Alternative :- B

4

A:

B: 1

1

Page 3: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

Post Graduate Assistants 2018 - 2019

Subject - Physics

Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 3 of 100

C: 2

2

D:

Correct Alternative :- D

5 The relation between rotational constant (B) and centrifugal distortion constant (D) is :

சுழறசிமோறிலி கும (B), சமயவில குஉரு குசலவு (D)

மோறிலி குமஇசைகயயோனவதோைரபு :

Page 4: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

Post Graduate Assistants 2018 - 2019

Subject - Physics

Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 4 of 100

Correct Alternative :- B

6 In a diatomic molecule, the vibrational energy of the lowest state :

ஈரணுமூல கூறில, தோழநிசலயிலஅதிரவுஆறறல :

A:

B:

C:

D:

Correct Alternative :- C

7 If E1 is the energy of the lowest state of a one-dimensional potential box of length 'a' and E2 is the

Page 5: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

Post Graduate Assistants 2018 - 2019

Subject - Physics

Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 5 of 100

energy of the lowest state when the length of the box is halved, then what is the relation between E1

and E2 ?

.'a'

நளமுளளஒருபரிமோணஆறறலவபைடியினமி குசறநதஆறறலமைைததின

ஆறறல E1என வ ோள .

வபைடியினநளதசதபோதியோ குசற குமகபோதுஆறறலமைைததினஆறறல

E2எனறோல E1மறறும E2 –றகுஇசைகயயோனவதோைரபு :

A: E2 = E1

E2 = E1

B: E2 = 2E1

E2 = 2E1

C: E2 = 3E1

E2 = 3E1

D: E2 = 4E1

E2 = 4E1

Correct Alternative :- D

8

A: symmetric tensor

ைமைசரஇழுவன

B: asymmetric tensor

ைமைசரறறஇழுவன

Page 6: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

Post Graduate Assistants 2018 - 2019

Subject - Physics

Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 6 of 100

C: symmetric scalar

ைமைசரஅளவன

D: asymmetric scalar

ைமைசரறறஅளவன

Correct Alternative :- A

9 Which of these is a Hamilton's canonical equation of motion ?

இவறறுளஎதுஹோமிலைனினவநறிமுசற குஉைபைைஇய ைைமனபோடு :

A:

B:

C:

Page 7: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

Post Graduate Assistants 2018 - 2019

Subject - Physics

Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 7 of 100

D:

Correct Alternative :- B

10 According to Lorentz transformation, when an observer S' moves with constant velocity 'v' along

positive x axis, his position co-ordinate is x'=__________.

லோவரணைஸஉறுமோறறததில, ஒருபோரசவயோளர S' கநர X

அைசிலமோறோதிசைகவ ம 'v' –கயோடுவைலலுமகபோது, அவரதுநிசலமஆயம

x'=__________

A: x

x

B: x - vt

x - vt

C:

Page 8: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

Post Graduate Assistants 2018 - 2019

Subject - Physics

Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 8 of 100

D:

Correct Alternative :- C

11

A: Coulomb

கூலூமப

B: Gauss divergence

ோஸவில ல

C: Laplace

லோபலோஸ

Page 9: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

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Subject - Physics

Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 9 of 100

D: Poisson

போயைோன

Correct Alternative :- D

12 At a surface at which there is an infinite potential step, the wave function becomes :

ஈரிலலோமினனிசலபடிஉளளஒருபரபபில, அசலைோரபினமதிபபு :

A: infinity

ஈரிலலோதது

B: real

உணசமயோனது

C: complex

சி லோனது

D: zero

சுழி

Correct Alternative :- D

13 According to Pauli's theory of paramagnetism, the magnetic susceptibility of free electrons is ꭓm=

வபளலியினபோரோ ோநத வ ோளச யினபடி, ைைறறஎல ைரோன ளின,

ோநதஏறபுததிறன, ꭓm =

A:

Page 10: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

Post Graduate Assistants 2018 - 2019

Subject - Physics

Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 10 of 100

B:

C:

D:

Correct Alternative :- B

14 The rotation of a symmetric top about intermediate axis or line of nodes is called :

இசைநிசலஅைசு க ோடுஅலலதுைநதி க ோைடிசனபவபோருததுசுழலுமைம

ைசரபமபரததினசுழறசிஇவவோறுஅசழ பபடுகிறது :

A: spin

தறசுழறசி

B: curling

Page 11: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

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Subject - Physics

Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 11 of 100

ஓரஞசுருைைல

C: precession

அைசுதிசைமோறறம

D: nutation

அைைதிரவுபவபயரைசி

Correct Alternative :- D

15 The kinetic energy 'T' for a system of mass 'm' in generalised plane polar co-ordinates (r, Ʋ) is :

(r, Ʋ) எனுமவபோதுபபசையோ பபைைதளமுசனஆயங ளில 'm'

நிசறவ ோணைஒருஅசமபபினஇய ஆறறல 'T' எனபது :

A:

B:

C:

D:

Page 12: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

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Subject - Physics

Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 12 of 100

Correct Alternative :- C

16 Three cards are drawn at random from an ordinary pack. Find the chance that they are a king, a

queen and a jack.

ஒருசைடு ைடிலிருநதுகநரநதோறகபோல 3 சைடு ளஎடு பபடுகினறன.

இசவரோஜோ, ரோணிமறறுமஜோ ஆ அசமயஎனனவோயபபு ?

A:

B:

C:

D:

Correct Alternative :- D

17

Page 13: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

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Subject - Physics

Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 13 of 100

A: Ѱ*Ѱ

Ѱ*Ѱ

B:

C:

D:

Correct Alternative :- B

Page 14: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

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Subject - Physics

Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 14 of 100

18 In a Canonical ensemble, system shall allow :

வநறிைோரபுளளியியலதிரைடுஒனறில, ஒருஙகுஎனபதுஇதசனஅனுமதி கும

:

A: Exchange particles only

து ள ளினபரிமோறறததிசனமைடும

B: Exchange either energy or particles only

ஆறறலஅலலதுது ள ளினபரிமோறறததிசனமைடும

C: Exchange energy only but not particles

து ள ளினபரிமோறறமறறஆறறலபரிமோறறததிசனமைடும

D: Exchange both energy and particles

ஆறறல, து ள ளஆகியஇரணடினதுபரிமோறறததிசனயும

Correct Alternative :- C

19 The proton synchrotron accelerates protons to very high energy of the order of __________ eV.

புகரோைைோனசின கரோடிரோனில,

புகரோைைோன ளமி உயரவநரு ஆறறலோன __________ eV –

குவிசரவூைைபபடுகினறன.

A: million

மிலலியன

B: kilo

கிகலோ

C: giga

கி ோ

D: billion

Page 15: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

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Subject - Physics

Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 15 of 100

பிலலியன

Correct Alternative :- D

20

A:

B:

C:

D:

Page 16: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

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Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 16 of 100

Correct Alternative :- C

21 Which instruction is not used for clear the accumulator ?

எநத ைைசளகைம லதசதசுழியோ பயனபடுததமோைைோது ?

A: MVI A, 00H

MVI A, 00H

B: SUB A

SUB A

C: ANI 00H

ANI 00H

D: MOV A, 00H

MOV A, 00H

Correct Alternative :- D

22 At the boundaries of the Brillouin zone, the solution of the wave equation us = ueiska represents :

பிரிலலோயினமணைலததினஎலசலயில, us =

ueiskaஎனறஅசலைமனபோைடினதரவு :

A: travelling wave

ந ருமஅசலசய குறி கிறது

B: standing wave

நிசலயோனஅசலசய குறி கிறது

C: running wave

Page 17: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

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Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 17 of 100

ஓடுமஅசலசயகுறி கிறது

D: none

எதுவுமிலசல

Correct Alternative :- B

23 The normal curve of binomial distribution in terms of standard deviation 'σ' is written as :

திைைவில ம 'σ' மூலமோ ,

சபனோமியலபகிரவினஇயலபோனவசளவுஎவவோறுஎழுதபபடுகிறது ?

A:

B:

C:

D:

Page 18: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

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Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 18 of 100

Correct Alternative :- C

24

A: m0

m0

B: 0.707 m0

0.707 m0

C: 0.5 m0

0.5 m0

D: 1.414 m0

1.414 m0

Correct Alternative :- D

25 The experiment which first detects the spin of electron is :

எவல ைரோனினசுழறசிசயமுதலில ணைறிநதகைோதசன :

A: Davis and Germer

கைவிஸமறறுமவஜரமர

B: Stern and Gerlach

ஸவைரனமறறுமவஜரகல

Page 19: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

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Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 19 of 100

C: G.P. Thomson

G.P. தோமஸன

D: Michelson - Morley

சம லைனமறறுமகமோரகல

Correct Alternative :- B

26 Two groups G and G' of same order having one to one correspondence between their elements is

called :

ஒகரவரிசைமுசறவ ோணைஇருகுழு ள G மறறும G' –

லஉளளஉறுபபு ளஒனகறோடுஒனறுவதோைரபுசையதோ இருநதோலஅதுஎவ

வோறுஅசழ பபடுகிறது ?

A: Homomorphism

வையலஒபபுசம

B: Isomorphism

ஒததவடிவுசைசம

C: Automorphism

தனஒபபுசம

D: Endomorphism

தனவையலஒபபுசம

Correct Alternative :- B

27 The intensity ratio of Stokes to Anti-Stokes is :

ஸகைோ ஸ கும, எதிரஸகைோ ஸ குமஉளளவைறிவுத வு :

Page 20: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

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Question Paper – Tentative Key

Date of Exam – 27-09-2019 &Session-FN

Page 20 of 100

A:

B:

C:

D:

Page 21: TEACHERS RECURITMENT BOARD Post Graduate Assistants …trb.tn.nic.in/PG_2019/pgkey/Physics.pdf · TEACHERS RECURITMENT BOARD Post Graduate Assistants 2018 - 2019 Subject - Physics

TEACHERS RECURITMENT BOARD

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Question Paper – Tentative Key

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Correct Alternative :- A

28 If the total number of nucleons in a nucleus is 'A', then the surface effect reduces its binding energy,

by a factor directly proportional to :

ஒருஅணு ருவிலவமோததஅணு ருது ள ளினஎணணி ச 'A', எனில,

கமறபரபபுவிசளவு ோரணமோ அதனபிசணபபோறறலஇதனகநரவிகிதமோ

குசறகிறது :

A:

B:

C: A2

A2

D:

Correct Alternative :- D

29 The zero point energy of the Linear Harmonic Oscillator is given by :

கநரஇசைஅசலயியறறியினசுழிநிசலஆறறலோனது :

A: ←ωc

←ωc

B: 2←ωc

2←ωc

C:

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D:

Correct Alternative :- C

30 In which region c = 0 stretching occur in IR spectrum :

அ ைசிவபபுநிறமோசலயில c = 0 நைசிஎநதபகுதியிலஏறபடும ?

A: 2300 - 2100 cm-1

2300 - 2100 cm-1

B: 1900 - 1650 cm-1

1900 - 1650 cm-1

C: 3640 - 3250 cm-1

3640 - 3250 cm-1

D: 160 - 110 cm-1

160 - 110 cm-1

Correct Alternative :- B

31 The internal organization in D RAM is :

ை திவோயநதகநோ மினறிஅணுகுமநிசனவததினஉளஅசமபபு :

A: 4 bit wide devices

4 அலகுஅ லமோன ருவி ள

B: 1 bit wide devices

1 அலகுஅ லமோன ருவி ள

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C: 8 bit wide devices

8 அலகுஅ லமோன ருவி ள

D: None of these

எதுவுமஇலசல

Correct Alternative :- C

32 The content of accumulator before CMA instruction is 89 H. Its content after instruction :

CMA ைைசள குமுனகைம லததிலஉளளதரவு 89 H எனில,

ைைசள குபினஅதிலஉளளதரவு :

A: 67 H

67 H

B: 5 AH

5 AH

C: 76 H

76 H

D: 55 H

55 H

Correct Alternative :- C

33 The total power radiated by an oscillating electric dipole is proportional to __________ of the

exciting wavelength.

அசலவுருமமினஇருமுசனவியினவமோததபரவலை திஎனபது,

ஊ அசலநளததினஎநதவிகிதோைோரததிலஅசமயும ?

A: ω2

ω2

B: ω3

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ω3

C: ω4

ω4

D: ω5

ω5

Correct Alternative :- C

34 The variation method yields :

மோறுபோடுமுசறயோனது :

A: wave function for ground state

தசரநிசலயிலஅசலைோரபினமதிபசபவ ோடு கிறது.

B: exact value of ground state energy

தசரநிசலஆறறலினைரியோனமதிபசபவ ோடு கிறது.

C: value of excited state energy

கிளரநதநிசலஆறறலினமதிபசபவ ோடு கிறது.

D: upper limit to the ground state energy

தசரநிசலஆறறலினஅதி பைை (கமலஎலசல) மதிபசபவ ோடு கிறது

Correct Alternative :- D

35 The Hermite polynomial of degree n, for n being a positive integer is :

'n' கநரமுழுவவணஎனில, n போச வ ோணைவஹரசமைபலலுறுபபோனஎனன ?

A:

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B:

C:

D:

Correct Alternative :- D

36

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A:

B:

C:

D:

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Correct Alternative :- B

37

A: L2 − Lz2 + ← Lz

L2 − Lz2 + ← Lz

B: L2 − Lz2 − ← Lz

L2 − Lz2 − ← Lz

C: 2← Lz

2← Lz

D: ← L+

← L+

Correct Alternative :- A

38 A circular coil having 50 turns has a radius of 0.1m. What is the magnetic induction at the centre of

coil when a current of 0.1A flows in it ?

0.1 ம. ஆரமும, 50 சுறறுமவ ோணடுளளஒருவைைைசுருளினவழிகய 0.1 A

மினகனோைைமபோயுமகபோது,

அதனசமயததிலஏறபடும ோநதததூணைலினமதிபபிசன ணைறி :

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A: 3.14 x 10-5 Tesla

3.14 x 10-5 Tesla

B: 6.28 x 10-5 Tesla

6.28 x 10-5 Tesla

C: 2.81 x 10-4 Tesla

2.81 x 10-4 Tesla

D: 25 Tesla

25 Tesla

Correct Alternative :- A

39

A: 0

0

B: 1

1

C:

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D:

Correct Alternative :- A

40 Which of the following equation explains that net magnetic induction through any closed surface is

zero ?

மூைபபைைபரபபினுளஉளளநி ர ோநதததூணைலினமதிபபுசுழிவயனறுவிள

குமைமனபோடுஇவறறுளஎது ?

A: ∇.B = 0

∇.B = 0

B: ∇x B = 0

∇x B = 0

C: ∇2B = 0

∇2B = 0

D: ∇B = 0

∇B = 0

Correct Alternative :- A

41 If the differential voltage gain and the common mode voltage gain of a differential amplifier are 48

dB and 2 dB respectively then its common mode rejection ratio is :

ஒருபகுவபரு கியினபகுமுசறவபரு மமறறுமவபோதுமுசறவபரு மமு

சறகய 48 வைசிவபலமறறும 2 வைசிவபலஎனில,

வபோதுமுசறதவிரபபுவிகிதம :

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A: 24 dB

24 வைசிவபல

B: 25 dB

25 வைசிவபல

C: 48 dB

48 வைசிவபல

D: 50 dB

50 வைசிவபல

Correct Alternative :- A

42 Given mp = 1.007876 amu and mn = 1.008665 amu. Calculate the binding energy of an α-particle if

1 amu = 931.3 MeV. [Mass of the α-particle is 4.0028 amu]

mp = 1.007876 amuமறறுமmn = 1.008665 amu. எனில,

ஒருஆலஃபோது ளினபிசணபபோறறலிசனமதிபபிடு : 1 amu = 931.3 MeV. [α

து ளினநிசற 4.0028 amu]

A: 28.29 MeV

28.29 MeV

B: 29.28 MeV

29.28 MeV

C: 14.15 MeV

14.15 MeV

D: 28.29 GeV

28.29 GeV

Correct Alternative :- A

43

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A: 00

00

B: 01

01

C: 10

10

D: 11

11

Correct Alternative :- D

44 Corresponding to every matrix A of rank 'r', there exist non singular matrices P and Q such that

PAQ=

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தரம 'r' வ ோணைஒவவவோருஅணி A கும, P மறறும Q

எனறஒருசமயிலோஅணி ளஉணடுஎனறோல, PAQ=

A:

B:

C:

D:

Correct Alternative :- C

45 For what combination of atomic number 'Z' and mass number 'A' is the pairing energy 'δ' considered

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negative in the semi empirical mass formula ?

அணுஎண 'A' மறறுமநிசறஎண 'Z'

இனஎநதகைர ச குபகுதிஅனுபவநிசறைோரவோயபபோைடில,

இசணயோ குஆறறல, 'δ' –வினமதிபபுஎதிர குறிஉசையது ?

A: odd Z, even N

ஒறசற Z, இரைசை N

B: even Z, odd N

இரைசை Z, ஒறசற N

C: odd Z, odd N

ஒறசற Z, ஒறசற N

D: even Z, even N

இரைசை Z, இரைசை N

Correct Alternative :- D

46 The expectation value of the position vector of a particle is a function only of __________.

ஒருது ளினநிசலவவ ைரினஎதிரபோரபபுமதிபபு __________

ஐமைடுமைோரநதுளளது.

A: time

கநரம

B: space co-ordinates

புறவவளிஆயங ள

C: t and r

t மறறும r

D: None of these

எதுவுமிலசல

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Correct Alternative :- A

47

A: {0, 0, 0}

{0, 0, 0}

B: {0, 1, 0}

{0, 1, 0}

C: {1, 0, 0}

{1, 0, 0}

D: {1, 1, 1}

{1, 1, 1}

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Correct Alternative :- C

48 In an 8085 microprocessor, the instruction CMP B has been executed while the content of the

accumulator is less than that of register B as a result :

8085 – நுணமுசறபபடுததியிலகைம லததிலஉளளதரவு, பதிகவடு B -

லஉளளதரசவவிைகுசறவோ இரு குமகபோது, CMP B

எனற ைைசளசயவையலபடுததினோல :

A: Carry flag will be set but zero flag will be reset

சுசமவ ோடிஒனறோ வும, சுழிவ ோடிசுழியோ வுமஇரு கும

B: Carry flag will be reset but zero flag will be set

சுசமவ ோடிசுழியோ வும, சுழிவ ோடிஒனறோ வுமஇரு கும

C: Both carry flag and zero flag will be reset

சுசமவ ோடி, சுழி வ ோடிசுழியோ இரு கும

D: Both carry flag and zero flag will be set

சுசமவ ோடி, சுழிவ ோடிஒனறோ இரு கும

Correct Alternative :- A

49 Every finite group is isomorphic with a subgroup of __________ group.

ஒவவவோருவசரயறு பபைைகுழுவும __________

குழுவினதுசண குழுவுைனவையவலோபபுசமவ ோணைதோகும.

A: asymmetric

ைமைசரறற

B: permutation

வரிசைமோறறம

C: symmetric

ைமைசரோன

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D: acyclic

சுழறசியறற

Correct Alternative :- C

50 Dulong - Petit's law is valid at room temperature for many metals while it fails for light elements

such as boron, beryllium because :

டியூலோங–

வபததிைவிதியோனதுஅசறவவபபநிசலயிலஅகந உகலோ ங ளு குவபோரு

நதுகிறது, ஆனோலகபோரோன,

வபரிலியமகபோனறகலைோனதனிமங ளு குவபோருநதவிலசலஏவனனில :

A: the Debye temperature of these elements is very high

அநதகுறிபபிைைதனிமங ளினடிவபயவவபபநிசலமி அதி ம

B: the Debye temperature of them is about 300 K

அவறறினடிவபயவவபபநிசல 300 K – குஅரு ோசமயிலஉளளது

C: the Debye temperature of them is low

அவறறினடிவபயவவபபநிசலகுசறவு

D: none of these

எதுவுமிலசல

Correct Alternative :- A

51 Coulomb's law states that the force of attraction or repulsion between two electric point charges is

directly proportional to :

கூலூமபவிதிகூறுவதுஎனனவவனறோல,

இருமினபுளளிமினனூைைங ளினஇசைகயஉளளஈரபபுஅலலதுவில லவி

சையினகநரவிகிதோைோரம :

A: r2

r2

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B:

C:

D:

Correct Alternative :- C

52 Permanent dipole moment consists of the following angular momentum :

நிசலயோனஇருமுசனதிருபபுததிறனகழ ணைக ோணஉநதங சளவ ோ

ணடுளளது :

A: orbital angular momentum of electron

எவல ைரோனினசுறறுபபோசதக ோணஉநதம

B: electron spin angular momentum

எவல ைரோனினதறசுழறசிக ோணஉநதம

C: nuclear spin angular momentum

அணு ருவினதறசுழறசிக ோணஉநதம

D: All of these

அசனததும.

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Correct Alternative :- A

53 The energy released in one nuclear fission of U235 is __________.

U235 –வினஒருஅணு ருபிளவிலவவளிகயறறபபடுமஆறறலினமதிபபு :

A: 23.84 MeV

23.84 MeV

B: 206.7 MeV

206.7 MeV

C: 267.4 MeV

267.4 MeV

D: 27.5 MeV

27.5 MeV

Correct Alternative :- B

54 The packing fraction of transition elements with mass numbers around 45 is __________.

நிசறஎண ள, 45 –

குஅரு ோசமயிலவபறறுளளமோறுநிசலததனிமங ளில,

வபோதிவுவிகிதமஎனபது __________ ஆகும.

A: zero

பூஜயம

B: positive

கநர குறிஉசையது

C: negative

எதிர குறிஉசையது

D: infinity

ஈறிலி

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Correct Alternative :- C

55 For paramagnetic materials, the relative magnetic permeability 'µr' at room temperature is nearly :

இசண ோநதவபோருை ளில, அசறவவபபநிசலயில,

ைோரபு ோநதஉைபுகுதிறன 'µr' மதிபபு :

A: Zero

சுழி

B:

C: 1

1

D: 10

10

Correct Alternative :- C

56 Cooper pairs are formed :

கூபபரகஜோடி ளஉருவோவது :

A: at very low temperatures

மி குசறநதவவபபநிசலயில

B: at high temperatures

அதி வவபபநிசல ளில

C: at very high temperatures

மி அதி வவபபநிசல ளில

D: None of these

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எதுவுமிலசல

Correct Alternative :- A

57 If the symbols carry their usual meanings, the maximum value of Maxwell's probability distribution

function is :

குறியடு ளதங ளதுஇயலபோனவபோருசளஉணரததுமோயினகம ஸவவலநி

ழத வுபகிரவுைோரபினதுவபருமமதிபபு :

A:

B:

C:

D:

Correct Alternative :- C

58 The units of magnetic permeability are :

ோநதவபோசிசம (ஊடுருவுதிறன) யினஅலகு :

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A: henry/metre

வஹனறி/மைைர

B: henry metre

வஹனறிமைைர

C: weber metre

வவபரமைைர

D: henry/sec.

வஹனறி / வினோடி

Correct Alternative :- A

59

A: describes photons

கபோைைோன சளவிவரி கிறது

B: describes electrons

எவல ைரோன சளவிவரி கிறது

C: is satisfied by spin 1/2 particles

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சுழறசி 1/2 உளளது ள ளு குவபோருநதும

D: it is a non-relativistic wave equation

இதுஒருைோரபிலலோஅசலைமனபோடு

Correct Alternative :- A

60

A:

B:

C:

D:

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Correct Alternative :- D

61 In NMR spectrum of CH3CHO the number of lines obtained :

CH3CHO –ன NMR ஸவப ைரததிலஎததசனவரி ளகிசை கும ?

A: 2

2

B: 3

3

C: 1

1

D: 4

4.

Correct Alternative :- A

62 In a.c. Josephson's effect, the supercurrent is given by the relation :

மோறுதிசைகஜோைபைனவிசளவில,

ம ைததுமமினகனோைைததிற ோனவதோைரபு :

A:

B:

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C:

D:

Correct Alternative :- C

63

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A: >> 1

>> 1

B: << 1

<< 1

C: = 0

= 0

D: = -1

= -1

Correct Alternative :- A

64 What is the normal frequency of vibration of a linear triatomic molecule executing asymmetric

stretching ?

கநரியலமூவணுமூல கூறுஒனறின,

ைமைசரறறநைசி ோனஇயலபுஅதிரவவணயோது ?

A: ω=0

ω=0

B:

C:

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D:

Correct Alternative :- C

65 According to the principle of virtual work, a system of particles is in equilibrium only if the virtual

work of the applied forces is __________.

மோயகவசலதததுவததினஅடிபபசையில, பயனுறுவிசை ளினமோயகவசல

__________ ஆ இருநதோலமைடுகம,

ஒருஅசமபபினது ள ளைமநிசலயிலஇரு கும.

A: constant

மோறிலி

B: infinite

ஈறிலி

C: zero

பூஜயம

D: frictional

உரோயவுசையது

Correct Alternative :- C

66 The relativistic formula for kinetic energy is :

இய ஆறறலினைோரபியலவோயபபோடுஎனபது :

A: T = (m-mo)c2

T = (m-mo)c2

B: T = mc2

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T = mc2

C:

D: T = moc2

T = moc2

Correct Alternative :- A

67 The geometrical depolarizing factor 'N' for a sphere about any axis is :

எநதஅைசு க ோைடிசனவபோருததுமஒருக ோளததினவடிைோரவபரு லமு

சனவுந ோரணி 'N' –னமதிபபு :

A: 0

0

B: 1

1

C:

D:

Correct Alternative :- C

68 In case same lines are obtained in both infra-red and Raman spectra, then the molecule should have :

அ ைசிவபபுநிறமோசலயும,

ரோமனநிறமோசலயுமஅகதவரியிலவபறபபைைோல, அநதமூல கூறு கு :

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A: centro symmetric

ைமைசரசமயமஉணடு

B: no centre of symmetry

ைமைசரசமயமஇலசல

C: high value of displacement

இைமோறறமஅதி மதிபபு

D: low value of displacement

இைமோறறமகுசறநதமதிபபு

Correct Alternative :- B

69 A clock in the moving rocket will appear to run slower than the clock on the surface of the earth. In

accordance with this t = __________. (Given to- time interval of clock at rest, t - time interval of

clock in motion with velocity 'v')

இய நிசலரோ வ ைடிலஉளள டி ோரம,

பூமியிலஉளள டி ோரதசதவிைவமதுவோ ஓடும. (to-

ைமநிசலயிலஉளள டி ோரததின ோலஇசைவவளி t- 'v'

திசைகவ ததுைனஇய நிசலயிலஉளள டி ோரததின ோலஇசைவவளிஎ

னறுவ ோடு பபைடுளளது). அதனபடி t = __________.

A:

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B:

C:

D:

Correct Alternative :- A

70 The wave function of hydrogen like atoms is proportional to [a0 is a positive constant] :

சஹைரஜனகபோனறஅணு ளு ோனஅசலைோரபுகழ ணைஎநதைோரபு

குகநரவிகிதவதோைரபுஉசையது. (a0எனபதுகநர குறிமோறிலி)

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A:

B:

C:

D:

Correct Alternative :- A

71

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A: π

π

B:

C:

D:

Correct Alternative :- D

72

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A:

B:

C:

D: zero

சுழி

Correct Alternative :- D

73 The relation between thermodynamical entropy 'S' and statistical entropy 'σ' is : (K - Boltzmann's

constant)

வவபபவிய வியலஎனடிகரோபபி கும 'S' புளளியியலஎனடிகரோபபி, 'σ' –

விறகுமஇசையிலோனவதோைரபுஎனபது ? (K- கபோலஸவமனமோறிலி)

A:

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B:

C:

D: S=Kσ

S=Kσ

Correct Alternative :- D

74 The divergence of magnetic vector potential 'A' is given by ∇.A=

ோநதவவ ைரமினனழுததம 'A' –னவில லைமனபோடு∇.A=

A:

B:

C:

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D:

Correct Alternative :- B

75 Perturbation method can be applied to :

சிறறுசலவுமுசறசயகழ ணைவறறிறகுபயனபடுததலோம :

A: All problems (systems)

அசனததுஅசமபபு ளு கும

B: Systems with large perturbation

அதி சிறறுசலவுவ ோணைஅசமபபு ள

C: When the perturbation is small and the ground state properties are known

தசரநிசலயினபணபு ளவதரிநதுமமறறுமசிறறுசலவுகுசறவோ உள

ளஅசமபபு ள

D: When the perturbation is small and the ground state properties are not known

தசரநிசலயினபணபு ளவதரியோதமறறுமசிறறுசலவுகுசறவோ உளள

அசமபபு ள

Correct Alternative :- C

76 1 Bohr magneton is :

ஒருகபோரகம வனைைோனினமதிபபு :

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A: 2.27x10-24 amp m2

2.27x10-24 amp m2

B: 6.67x10-34 amp m2

6.67x10-34 amp m2

C: 9.27x10-24 amp m2

9.27x10-24 amp m2

D: 9.27x10-9 amp m2

9.27x10-9 amp m2

Correct Alternative :- C

77 Find the unit vector perpendicular to the surface x2+y2-z2=11 at the point (4, 2, 3).

(4, 2, 3) எனறபுளளியில, x2+y2-z2=11

எனறபரபபினவைஙகுததோனஓரலகுவவ ைசரமதிபபிடு :

A:

B:

C:

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D:

Correct Alternative :- B

78 If the mobility of electrons in a metal increases, the resistivity :

உகலோ ததிலுளளஎல ைரோன ளினஇய குதிறனஅதி மோனோல,

அதனதசைததிறன ;

A: decreases

குசறகிறது

B: increases

அதி மோகிறது

C: remains constant

மோறோது

D: none of these

எதுவுமிலசல

Correct Alternative :- A

79 If the determinant of unitary matrices of order 'n' is +1 then the subgroup is denoted by :

'n' வரிசைவ ோணைஓரலகுஅணியினஅணி க ோசவ +1

எனிலஅநததுசண குழுஎவவோறுகுறிபபிைபபடுகிறது ?

A: FLG(n)

FLG(n)

B: SU(n)

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SU(n)

C: D(n)

D(n)

D: C(n)

C(n)

Correct Alternative :- B

80

A: 0

0

B: 1

1

C: 2

2

D: 3

3

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Correct Alternative :- B

81 An energy eigen value 'E' is said to be degenerate when :

.'E' எனறஆறறலஐ னமதிபபுசிசதநததுஎனபபடுவது :

A: one eigen function has one eigen value

ஒருஐ னைோரபிறகுஒருஐ னமதிபபுஉளளகபோது

B: one eigen function has many eigen value

ஒருஐ னைோரபிறகுபலஐ னமதிபபுஉளளகபோது

C: many eigen functions has many eigen values

பலஐ னைோரபு குபலஐ னமதிபபுஉளளகபோது

D: many eigen functions for one eigen value

பலஐ னைோரபு ளஒருஐ னமதிபபுஉளளகபோது

Correct Alternative :- D

82

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A: (a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)

(a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)

B: (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

C: (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)

(a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)

D: (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)

(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)

Correct Alternative :- D

83 Spin - Spin interaction is :

ஸபின – ஸபினவதோைரபு :

A: Dependent of the strength of the applied magnetic field, independent of the coupling constants.

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பயனபடுததபபடும ோநதபுலததினவலிசமசயைோரநதது,

இசணயோ மோறிலிசயைோரநததலல.

B: Independent of the strength of the applied magnetic field, dependent on the coupling constants.

பயனபடுததபபடும ோநதபுலததினவலிசமசயைோரநததலல,

இசணயோ மோறிலிசயைோரநதது.

C: Dependent on the strength of the applied magnetic field and coupling constants.

பயனபடுததபபடும ோநதபுலமமறறுமஇசணயோ மோறிலிசயைோரநத

து.

D: Independent of the strength of the applied magnetic field and coupling constants.

பயனபடுததபபடும ோநதபுலமமறறுமஇசணயோ மோறிலிசயைோரநத

தலல.

Correct Alternative :- B

84 The range of the first Brillouin zone of a linear lattice are :

கநரபடி அணி க ோசவயில, முதலபிரிலலோயினமணைலததினஎலசல :

A: −πa ≤ K ≤ πa

−πa ≤ K ≤ πa

B:

C: 0 ≤ K ≤ πa

0 ≤ K ≤ πa

D: −πa ≤ K ≤ 0

−πa ≤ K ≤ 0

Correct Alternative :- B

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85 Curie - Weiss law is :

கியூரி –வியஸவிதியோனது :

A: ꭓm = C/T

ꭓm = C/T

B: ꭓm = C/θ

ꭓm = C/θ

C: ꭓm = C/(T − θ)

ꭓm = C/(T − θ)

D: ꭓm = (T − θ)/C

ꭓm = (T − θ)/C

Correct Alternative :- C

86 The energy density of a radiation (photons) is given by : (symbols carry their usual meanings)

திரவைசின (கபோைைோன ள)

ஆறறலஅைரததிஎவவோறுவ ோடு பபடுகிறது ? (குறியடு ள,

தங ளதுவபோதுபவபோருசளதோஙகியுளளன)

A:

B:

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C:

D:

Correct Alternative :- A

87 The coherence length of the paired electrons is :

பிசண பபைைஎல ைரோன ளினஒததநளம :

A: 0.25 nm

0.25 nm

B: 250 nm

250 nm

C: 0.01 nm

0.01 nm

D: 0.001 nm

0.001 nm

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Correct Alternative :- D

88 Raman effect is :

ரோமனவிசளவு ;

A: Absorption of light

ஒளிஉறிஞசுதல

B: Emission of light

ஒளிஉமிழவு

C: Inelastic scattering of light

மளதனசமயறறஒளிைசிதறல

D: Elastic scattering of light

மளதனசமயுசையஒளிைசிதறல

Correct Alternative :- C

89 The inverse operation in 3d space is given by the matrix :

3d ைைததிலதசல கழஇய ததினஅணியோது ?

A:

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B:

C:

D:

Correct Alternative :- C

90 Magnetic materials having relative permeability <1 are called __________ materials.

ைோரபுவபோசிசம<1 வ ோணை ோநதபவபோருை ள, __________

வபோருை ளஎனஅசழ பபடுகினறன.

A: Paramagnetic

அய ோநத – போரோ (கம னடி ) ோநத

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B: Ferromagnetic

ஃவபகரோகம னடி – ஃவபகரோ ோநத

C: Ferrimagnetic

ஃவபரிகம னடி – ஃவபரி ோநத

D: Diamagnetic

எதிர ோநத – எதிர ோநத

Correct Alternative :- D

91 For copper, the resultant spin in Bohr magneton is :

கபோரமோ வனைைோனஅளவிலதோமிரததினவதோகுபபுசுழறசி :

A: 0

0

B: 1

1

C: 2

2

D: 3

3

Correct Alternative :- A

92 If 'r' is coefficient of correlation and 'N' is the total number of observations. Then standard error is

defined as :

'r' ஒபபுறவு வ ழுமறறும 'N' வமோதத ணைறிபதிவினஎணணி ச வயனில,

திைைபபிசழஎவவோறுவசரயறு பபடும :

A: 1-r2

1-r2

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B:

C:

D:

Correct Alternative :- D

93

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A: Square wave

ைதுரஅசல

B: Triangular wave

மு க ோணஅசல

C: Parabolic wave

பரவசளயஅசல

D: Sine wave

சைனஅசல

Correct Alternative :- A

94 A superconducting material when placed in a magnetic field will :

ஒரும ைததிசய ோநதபுலததிலசவ குமவபோழுது :

A: attract the magnetic field towards its centre

ோநதபுலதசதஅதனசமயதசதகநோ கிஈர கிறது

B: repel all the magnetic lines of forces passing through it

அதனவழியோ ைவைலலுமஅசனதது ோநதவிசை க ோடு சளயுமவில

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கிவவளிகயதளளுகிறது.

C: attract the magnetic field but transfer it into a concentrated zone

ோநதபுலதசதஈரதது, ஒருமணைலததிலகுவி கிறது.

D: not influence the magnetic field

ோநதபுலததிலஎநதமோறறதசதயுமஏறபடுததுவதிலசல.

Correct Alternative :- B

95 The temperature of the sample is increased, the intensity of hot bands :

மூல கூறினவவபபநிசலஅதி ரி குமகபோதுவவபபபபைசை ளினவைறிவு :

A: Increases

அதி ரி கும

B: Decreases

குசறயும

C: No change

மோறறமிலசல

D: Zero

சுழி

Correct Alternative :- A

96 When does Lorentz transformation reduce to Galilean transformation ?

லோவரணைஸஉருமோறறமஎபகபோது லிலியனஉருமோறறமோ மோறறமவபறு

ம ?

A: When V>>C

V >> C எனில

B: When V = C

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V = C எனில

C: When V << C

V << C எனில

D: When V = 0

V=0 எனில

Correct Alternative :- C

97

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A: 0o

0o

B: −90o

−90o

C: 90o

90o

D: ± 180o

± 180o

Correct Alternative :- D

98 The uncertainty in the energy of a system that has a finite life time 't' 𝜏is given by :τ

வசரயறு பபைைஆயுை ோலம

'𝜏'வ ோணைஒருஅசமபபிலஉளளஆறறலினநிைையமினசம :

A:

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B:

C:

D:

Correct Alternative :- B

99 The life of an electronic device has a mean of 300 hours and a standard deviation of 25 hours.

Assuming normal distribution of life times, find the probability that any one of these devices will

have a life time of more than 350 hours.

ஒருமினனணு ருவியினைரோைரிஆயுை ோலம 300

மணிகநரமமறறுமஅதனதிைைவில ம 25 மணிகநரம.

அதனஆயுை ோலததிசனஇயலபரவலோ ருதி, ஒரு ருவியினஆயுை ோலம

350 மணிகநரததிறகுகமலோ இரு கவணடுவமனில,

நி ழத வினமதிபபிசன ணைறி .

A: 2

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2

B: 0.4772

0.4772

C: 1

1

D: 0.0228

0.0228

Correct Alternative :- D

100 The energy gap in the Dirac free electron energy spectrum is :

டிரோ கின ைடிலலோஎவல ைரோனஆறறலநிறமோசலயில,

ஆறறலஇசைவவளியினமதிபபு :

A: zero

சுழி

B: 2mc2

2mc2

C: mc2

mc2

D: − mc2

− mc2

Correct Alternative :- B

101 Two nuclei having same number of nucleons but the number of protons in one of them is equal to

the number of __________ in the other are called mirror nuclei.

ணணோடிஅணு ரு ளஎனபன,

ஒகரஎணணி ச யிலோனஅணு ருது ள ளவ ோணைஇருஅணு ரு

ளில, ஒனறினபுகரோைைோனஎணணி ச யுமமறவறோனறின __________

எணணி ச யுமைமமோ வ ோணைசவயோகும.

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A: protons

புகரோைைோன

B: neutrons

நியூைரோன

C: electrons

எல ைரோன

D: neutrinos

நியூைரிகனோ

Correct Alternative :- B

102 The expression for the probability current density for a relativistic particle is :

ைோரபுசைசமது ளினநி ழத வுமினகனோைைஅைரததி ோனக ோசவ :

A: depends on the spin of the particle

து ளினசுழறசிசயவபோறுததுஅசமயும.

B: invariant under Lorentz transformation

வலோரோனைஸஇைமோறறததினகழமோறோது.

C: is always pure imaginary

எபவபோழுதுமமுழுதும றபசனயோனது.

D: identical to the corresponding non-relativistic expression

அதறகுரியைோரபிலலோக ோசவ குைரிைமம

Correct Alternative :- D

103 Four dice are thrown. What is the probability that the sum of the numbers appearing on the dice is

18 ?

நோனகுப சை ளஎரியபபடுகினறன.

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ப சையிலகதோனறுமஎண ளினகூைைல 18 –

ஆ அசமவதற ோனநி ழத வுஎனன ?

A:

B:

C:

D:

Correct Alternative :- B

104 The Rodrigue's representation of Lagurre's polynomial Ln(x) is :

லோ ரபலலுறுபபோனின Ln(x) ரோைரி வடிவமஎது ?

A:

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B:

C:

D:

Correct Alternative :- D

105 At Neel temperature :

நலவவபபநிசலயில :

A: permeability is minimum

ோநதஉைபுகுதிறனசிறுமம

B: permeability is maximum

ோநதஉைபுகுதிறனவபருமம

C: susceptibility is minimum

ோநதஏறபுததிறனசிறுமம

D: susceptibility is maximum

ோநதஏறபுததிறனவபருமம

Correct Alternative :- D

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106 Which of this is the equation of continuity ?

இவறறுளஎதுவதோைரைசிநிசலைமனபோைோகும ?

A:

B:

C: J = σ E

J = σ E

D: B = µ0H

B = µ0H

Correct Alternative :- B

107 According to Franck - Condon Principle :

பரோன – ோணைனதததுவபபடி :

A: Vibrating molecule does not change its inter-nuclear distance

அதிரவுஆறறலமோறறததினவபோழுதுஅணு ரு ளு குஇசைகயயோன

தூரமமோறறமசையோது.

B: Rotating molecule does not change its inter-nuclear distance

சுழலுமஆறறலமோறறததினவபோழுதுஅணு ரு ளு குஇசைகயயோன

தூரமமோறறமசையோது.

C: Vibrating molecule changes its inter-nuclear distance

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அதிரவுஆறறலமோறறததினவபோழுதுஅணு ரு ளு குஇசைகயயோன

தூரமமோறறமசையும.

D: Rotating molecule changes its inter-nuclear distance

சுழலுமஆறறலமோறறததினவபோழுதுஅணு ரு ளு குஇசைகயயோன

தூரமமோறறமசையும.

Correct Alternative :- A

108 The correct order of different types of energies is :

பலகவறுஆறறல ளினைரியோனவரிசை :

A: Eel>>Evib>>Erot>>Etr

Eel>>Evib>>Erot>>Etr

B: Eel>>Erot>>Evib>>Etr

Eel>>Erot>>Evib>>Etr

C: Eel>>Evib>>Etr>>Erot

Eel>>Evib>>Etr>>Erot

D: Etr>>Evib>>Erot>> Eel

Etr>>Evib>>Erot>> Eel

Correct Alternative :- A

109 In sodium, the Fermi energy is 3.1 eV. What is its Fermi temperature ? (KB=1.38x10-23 J/K)

கைோடியததினஃவபரமியினஆறறலமதிபபு 3.1 eV.

அதனஃவபரமியினவவபபநிசலஎனன ? (KB=1.38x10-23 J/K)

A: 3.6x104K

3.6x104 K

B: 3.6x103K

3.6x103 K

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C: 2.25x1023K

2.25x1023 K

D: 2.25x1024K

2.25x1024 K

Correct Alternative :- A

110 According to Gamow's theory of alpha decay, the relation between disintegration constant 'λ',

frequency of a-particle collision with the walls '𝜐' and the probability of transmission 'P' in each

collision is :

ஆலஃபோசிசதவு ோனவ கமோவ ோளச யினபடி, சிசதவுமோறிலி, 'λ',

சுவரமதோனஆலஃபோது ளினகமோதலு ோனஅதிரவவண '𝜐'

மறறுமஒவவவோருகமோதலினகபோதுஏறபடுமபரபபுச நி ழத வு 'P' –

ோனவதோைரபுஎனபது :

A: λ = 𝜐P

λ = 𝜐P

B: 𝜐 = λP

𝜐 = λP

C: P = 𝜐λ

P = 𝜐λ

D: λp𝜐 = constant

λp𝜐 = மோறிலி

Correct Alternative :- A

111 Bauxite is extracted from __________ mining.

போ சஸை _________ சுரங முசறமூலமஎடு பபடுகிறது.

A: Alluvial

வணைலபிரிததல

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B: Open pit

திறநதவவளி

C: Underground

நிலததடி

D: Strip

பைசை ளோ எடுததல

Correct Alternative :- B

112 Hunters of Canada are called :

னைோவில ோணபபடுமகவைசையோடுபவர ள :

A: Pygmies

பி மி ள

B: Masai

மைோய

C: Eskimos

எஸகிகமோஸ

D: Lapps

லோபஸ

Correct Alternative :- C

113 Strength of which magnet can be changed ?

எநத ோநதததினவலிசமசயமோறறிஅசம முடியும ?

A: Bar magnet

ைைை ோநதம

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B: Horse shoe magnet

இலோை ோநதம

C: Electromagnet

மின ோநதம

D: Ring magnet

வசளய ோநதம

Correct Alternative :- C

114 Which metal have highest melting point ?

கழ ணைவறறுளஎநதஉகலோ மஅதி பைைஉருகுநிசலசயவபறறுளளது ?

A: Copper

ோபபர

B: Nickel

நி ல

C: Silver

சிலவர

D: Tungsten

ைஙஸைன

Correct Alternative :- D

115 The material, which is used for making Solar cells :

சூரியமின லமதயோரி பயனபடுததபபடுமவபோருள :

A: Copper

தோமிரம

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B: Silicon

சிலி ன

C: Iron

இருமபு

D: Aluminium

அலுமினியம

Correct Alternative :- B

116 The book which describes about the Tamils Society and Economic Conditions was __________.

தமிழரினைமுதோயமமறறுமவபோருளோதோரதசதபறறி கூறுமநூல __________.

A: Mountain Epigraphy

மசல லவவைடு

B: Tolkappium

வதோல ோபபியம

C: Sangam Literature

ைங இல கியம

D: Indica

இணடி ோ

Correct Alternative :- D

117 Home Rule league in Bombay was formed by :

பமபோயிலதனனோைசி ழ தசதகதோறறுவிததவர :

A: Nehru

கநரு

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B: Mrs. Annie Besant

திருமதி. அனனிவபைனை

C: Tilak

தில ர

D: Bharathiar

போரதியோர

Correct Alternative :- C

118 Which one of the following is correct ?

ககழததரபபைடுளளவறறிலஎதுைரியோனது ?

A: IUPAC-International Union of Pure and Analytical Chemistry

IUPAC - International Union of Pure and Analytical Chemistry

B: ISBN-Indian Standard Book Number

ISBN - Indian Standard Book Number

C: LAN-Local Arial Network

LAN - Local Arial Network

D: UNESCO-United Nations Educational Scientific and Cultural Organisation

UNESCO - United Nations Educational Scientific and Cultural Organisation

Correct Alternative :- D

119 Under the Constitution of India, which one of the following is not a Fundamental Duty ?

ககழவ ோடு பபைடுளளசவ ளிலஇநதியஅரசியலசமபபினஅடிபபசை

ைசம ளிலஇவறறிலஎதுவரோது ?

A: To vote in Public Elections

வபோதுகதரதலிலவோ ளிபபது

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B: To develop the scientific temper

அறிவியலமனபபோனசமசயவளரததல

C: To safeguard public property

வபோதுவைோதது சளபோது ோததல

D: To abide by the Constitution and respect its ideals

இநதியஅரசியலசமபபின ருதது சளஎபவபோழுதுமமதிததுநைததல

Correct Alternative :- A

120 Ordinance must be ratified by the State legislature, within :

அவைரைைைங ள __________

குளமோநிலைைைமனறங ளினஏறசபவபறகவணடும.

A: 6 weeks

6 வோரங ள

B: 7 weeks

7 வோரங ள

C: 100 days

100 நோை ள

D: 150 days

150 நோை ள

Correct Alternative :- A

121 Centre for Policy Research (CPR) is one of India's leading think tanks focussing on public policy

was established in __________.

திைைஆரோயைசிசமயம (CPR)

இநதியோவினஒருமுனகனோடிவபோதுததிைைசிநதசனய ம _________

வருைமநிறுவபபைைது.

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A: 2019

2019

B: 2015

2015

C: 1956

1956

D: 1973

1973

Correct Alternative :- D

122 'Freedom to learn' is the classic work of__________ in which conditions for the promotion of

learning : empathy, positive regard and genuineness is explained.

‘ றபதற ோனசுதநதிரம’ __________ இவரினஒருஉனனதமோனபசைபபு,

இதனில றறலு ோனஉயரவுநிசல ளோன :பைைோதோபம,

மதிபபுமறறுமஉணசமததனசமவிள பபைடுளளது.

A: E.L. Thorndike

E.L. தோரணசை

B: Ned Flanders

வநைபளோண ரஸ

C: Alfred Binet

ஆலபரைபிகன

D: Carl Rogers

ோரலகரோ ரஸ

Correct Alternative :- D

123 __________ theory advocates that understanding the map making rather than holding up Stimulus -

Response (S-R) connections.

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__________ க ோைபோைோனதுதூணைலதுலங ல (S-R)

இசயபு சளஉருவோ குவசத ோைடிலுமபுரிதலமறறுமஉருவசமவுகமற

வ ோளளசலமுனனிசலபபடுததும.

A: Guthires contiguity

குசதயரினஅணசம

B: Tolman sign

ைோலவமனகுறியடு

C: Hulls systematic behaviour

ஹலஸினமுசறயோனநைதசத

D: Lewins field

லவின ள க ோைபோடு

Correct Alternative :- B

124 The book 'Talks to Teachers' was written by :

''Talks to Teachers" எனறபுதத தசதஎழுதியவர :

A: James Drever

வஜமஸசைவர

B: Swami Vivekananda

சுவோமிவிகவ ோனநதோ

C: J.B. Vatson

J.B. வோைைன

D: William James

விலலியமவஜமஸ

Correct Alternative :- D

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125 'Care for Pets' is a __________ method of adjustment.

வைலலபபிரோணி சளபபரோமரிபபதுஎனபது __________

இண முசறயோகும.

A: Regression

பினகனோ

B: Sublimation

மசைமோறற

C: Withdrawal

பினவோஙகுதல

D: Avoidance

வில குதல

Correct Alternative :- B

126 Benjamin Bloom of the University of Chicago and a group of colleagues and associates developed

the classification of educational objectives in the years __________.

சி ோக ோபல சல ழ தசதைோரநதவபனஞைமினபுளூம,

இசணபணிபுரிகவோரமறறுமை ோ ளகைரதது லவியியலகநோ ங ளு

ோனவச பபோைடிசனதுவ கியஆணடு _________.

A: 1972

1972

B: 1964

1964

C: 1996

1996

D: 1956

1956

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Correct Alternative :- D

127 In WAIS test, under the performance scale subtests _________ is a version of the familiar code

substitution test which has often been included in the non-language intelligence scales.

WAIS கதரவின, வையலதிறனஅளவுக ோலினஉபகதரவு ளில _________

வச தகதரவோனதுகுறியடுமோறறதகதரவோகுமஇதசன,

வபோதுவோ வமோழிஅலலோநுணணறிவுஅளவுக ோல ளுைனகைர லோம.

A: Block design

வதோகுதிவடிவசமபபு

B: Picture arrangement

பைஒழுங சமபபு

C: Digit symbol

எணணில குறியடு

D: Picture completion

பைமநிசறவுவையதல

Correct Alternative :- C

128 When a student learn to link 'cat' with 'dog' more easily than 'cat' with 'inch' or 'cat' with 'buckle',

then it is an example of __________.

‘பூசன’ எனபதசன ‘அஙகுலம’ மறறும ‘பூசன’ எனபதசன ‘வ ோ கி’

எனபதகனோடுஇசணததறிவதசனவிைவும ‘பூசன’ எனபதசன ‘நோய’

எனபகதோடுமி எளிதோ ஒருமோணவரோலஇசணதது ற முடிவது

__________ னஎடுதது ோைைோகும.

A: Synchronous learning

ஒததநி ழவு றறல

B: Motivated learning

ஊ குவிபபு றறல

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C: Paired-associate learning

இசண– இசயபு றறல

D: Physical learning

இயறபிய றறல

Correct Alternative :- C

129 The learner is destined to imbibe typical characteristics of his/her individual character. This stage of

affective domain is __________.

றபவரஅவரதுநைதசதயிலகுறிபபிைைவச பணபியலபு சளஉளளரதது

வ ோளளமுசனபபுைனவையலபடுவோர. உணரவுைோரபுலனினஇநதநிசல

_________

A: Valuing

மதிபபுணரதல

B: Characterization by a value

விழுமியமைோரநதபணபியலபோ ம

C: Organization

ஒருங சமததல

D: Receiving

உைவபறுதல

Correct Alternative :- B

130 In this learning the subject has less freedom in recall, the subject is expected to recall the words in

the order in which they are presented ?

இவவச றறலில,

றபவரு குமைைறிதலு ோனசுதநதிரமகுசறவோனது. றபவர,

வோரதசத சளஅதுவழங பபைைவரிசையினஅடிபபசையிகலகயமைைறிய

எதிரபோர பபடுகிறோர.

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A: Serial learning

வதோைரநிசல றறல

B: Paired-associate learning

இசண–வதோைரபு றறல

C: Immediate free recall

உைனநிசலநிசனவுகூரதல

D: Disassociated learning

அநநியவதோைரபு றறல.

Correct Alternative :- A

131 The necessary entering behaviour is the availability to the organism of particular responses, this

is____________.

கதசவயோனஉளளைடுநைதசதஎனபதுஉயிரியினகுறிபபிைைதுலங ல ளி

னகிசைததறதனசமயோகும, இது __________ ஆகும.

A: Instrumental learning

ருவிைோரஆறறல

B: Problem-solving ability

சி லதரததலதிறன

C: Classical conditioning

ஆ நிசலயிறுததம

D: Teaching skill

றபிததலதிறன

Correct Alternative :- A

132 __________ principle states that "what was being done in the past in the presence of a set of stimuli

will tend to be done next when the stimulus combination occurs".

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__________ க ோைபோைோனதுஇவவோறுகுறிபபிடுகிறது,

‘‘ ைநத ோலததினிலஒருதூணைலவதோகுபபினமுனனிசலயிலஎனனகமற

வ ோளளபபைைகதோஅகதவிசளவோனதுதூணைலஒருசமபபோைடினகபோதுநி

ழும.

A: Extinction

அறவறோழிச

B: Association

வதோைரபு

C: Dark 'Ghetto'

இருணை ‘வ ைகைோ’

D: Recency

அணசம

Correct Alternative :- D

133 Which one of the following is not a mode of use in computer aided instruction ?

பினவருவனவறறுளஎநதஒருவையலவச யோனது ணினிஉதவிகயோடு றபி

ததலபயனமுசறஅலல ?

A: Problem solving

சி லதரததல

B: Test agenda

கதரவுநிரல

C: Author mode

ஆசிரியரபோஙகு

D: Drill and Practice

வதோைரவையலபோடுமறறுமபயிறசி

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Correct Alternative :- B

134 The linguist __________ opined that language has strong biological basis, with children

biologically prepared to learn language at a certain time and in a certain way.

__________

வமோழியோளரோனஇவரின ருததுபபடிவமோழிஉயிரியினஆதோரமஎனவும,

குழநசத ளவமோழியிசன ற ஒருகுறிபபிைை ோலததில,

குறிபபிைைவழிமுசற ளிலஉயிரிைோரபுததனசமகயோடுதயோரோகிவிடுகினற

னரஎனறதமது ருததிசனவதரிவிததோர.

A: Noam Chomsky

நகவோமகைோமஸகி

B: Lev Vygotsky

வலவசவ ோைஸகி

C: Maria Montessori

மரியோமோணடிகைோரி

D: Jean Piaget

ஜனபியோகஜ

Correct Alternative :- A

135 __________ theory has made learning an intelligent task requiring mental abilities instead of mind

fumbling and automatic responses to specific stimuli.

_________

க ோைபோைோனது றறசலகுறிபபிைைதூணைலு ோனவிள நிசலமறறுமத

னனிய துலங லஅலலோதமனததிறன ளைோரநதஒருநுணணறிவுவையல

போைோ ருததுசறவையதுளளது.

A: Classical conditioning

ஆ நிசலயிறுததம

B: Operant conditioning

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ருவிைோரஆ நிசலயிறுததம

C: Field theory of learning

றறலின ள க ோைபோடு

D: Insightfull learning

உள ோைசி றறல

Correct Alternative :- D

136 __________ acts as consciousness switch, turning consciousness on or off by sending suitable

signals to those brain parts involved in conscious processes.

__________ ஆனதுதனவுமனவபோததோனோ வையலபடுகிறது,

தனவுமனததிசனவையலபைசவ வுமவையலபைோதுவையயவுமதனவுைவை

யலபோடு சளகமறவ ோளளுமமூசளயினபகுதி ளு குதகுநதகுறியடு

சளஇசவஅனுபபுகிறது.

A: Zone of Proximal Development (ZPD)

கமமபைைவளரைசிமணைலம

B: Reticular Activating System (RAS)

நுணவசலயவையலபோைடுஅசமபபு

C: Consciousness Development System (CDS)

உணரவுநிசலகமமபோைடுஅசமபபு

D: Deoxyribo Nucleic Acid (DNA)

டிஆ சிசரகபோநியு ளி அமிலம

Correct Alternative :- B

137 __________ philosophy of education considers education as a spiritual need.

_________

லவிததததுவமஇசறயுணரவுதகதசவயிசனகய லவியினகநோ மோ

ருதுகிறது.

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A: Idealism

ருததியல

B: Naturalism

இயறச தததுவம

C: Pragmatism

பயனளசவ

D: Realism

யதோரதத வ ோளச

Correct Alternative :- A

138 ___________ is a rational problem solving method of analyzing the educational process and making

it more effective.

_________

ஆனது லவியியலவையலநிசல சளபகுபபோயவுவையயுமமறறுமஅதசன

திறமபடுததும ோரணவிமரைனசி லதரததலமுசறயோகும.

A: Brainstorming

அறிவியலோ ம

B: Gagne's hierarchy of learning

ோ கனயின றறலபடிநிசல

C: Instructional designing

றபிததலவடிவசமபபு

D: Systems approach

திைைஅணுகுமுசற

Correct Alternative :- D

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139 'Unity of substance, origin and purpose' is a threefold idea of unity put forth by __________.

‘வபோருள, கதோறறமமறறுமகநோ மஇசவ ளினஒருசமபபோடு’

இசவஒருசமபபோைடினமுமமுசனசிநதசன, இ ருதசத கூறியவர

_________.

A: Froebel

ஃபகரோவபல

B: Swami Dayand Saraswathi

சுவோமிதயோனநதைரஸவதி

C: Swami Vivekananda

சுவோமிவிகவ ோனநதர

D: J.J. Rousseau

J.J. ரூகைோ

Correct Alternative :- A

140 __________ refers to information available to students that makes possible the comparison of actual

performance with some standard of performance.

________

ஆனதுமோணவர ளு குகிசை பவபறுமத வல சளஅதனநிசலயோன

வையலதிறனினறுநி ழவையலதிறனிசனஒபபடுவையதறிவதிசனகுறி கிற

து.

A: Criticism

திறனோயவு

B: Reinforcement

வலுவூைைம

C: Feedback

பினனூைைம

D: Communication

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Question Paper – Tentative Key

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வதோைரபு

Correct Alternative :- C

141 The Third All India Educational Survey was undertaken in the year _________.

மூனறோமஅகிலஇநதிய லவி ண வ டுபபு _________

ஆணடுகமறவ ோளளபபைைது ?

A: 1978

1978

B: 1973

1973

C: 1965

1965

D: 1984

1984

Correct Alternative :- B

142 Project report on the 'Cost of Education' was prepared by __________.

‘ லவி ோனவைலவு’ எனறதிைைஅறி ச யிசனதயோரவையதது __________.

A: UNESCO

UNESCO

B: NCERT

NCERT

C: NCTE

NCTE

D: World Bank

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உல வஙகி

Correct Alternative :- B

143 'Imaginative Stories' is a test in which __________ is given.

' றபசன சத ள’ __________ லவ ோடு பபைைஒருகைோதசனஆகும.

A: Non-verbal task

வோயவமோழிஅலலோகைோதசன

B: Verbal task using non-verbal stimuli

வோயவமோழிஅலலோதூணைசலபயனபடுததுமவோயவமோழிகைோதசன

C: Verbal task using verbal stimuli

வோயவமோழிதூணைசலபயனபடுததுமவோயவமோழிகைோதசன

D: Filling in gaps

இசைவவளிசயநிரபபுதல

Correct Alternative :- C

144 'Regaining Excellence in Education' and 'What's Best for Children' are the works of __________,

who concentrated on alternatives in public school system.

‘ லவியிலகமனசமசயமைபிபபது’ மறறும ‘குழநசத ளு குசிறநததுஎது’

எனபசவ __________ எனபோரதுபசைபபு ளோகும.

இவரவபோதுபபளளிமோறறுஅசமபபுமுசற ளில வனமவைலுததியவர.

A: Paul Goodman

போலகுைவமன

B: Sri Aurobindo

ஸரஅரவிநதர

C: Mario D. Fantini

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மரிகயோ D. போனடினி

D: Sri Dayanand Saraswathi

ஸரதயோனநதைரஸவதி

Correct Alternative :- C

145 The objectives of __________ are the development of abilities and values such as the spirit of

enquiry, creativity, objectivity and aesthetic sensitivity.

_________ கநோ ங ளோ ருதபபடுவது, வினவலஆவல, ஆ ததிறன,

புறவயததனசமமறறுமஅழகுணரவுபுலனதனசமஇசவ ளைோரநததிறன

ளமறறுமவிழுமங ளினகமமபோைோகும.

A: Value education

விழும லவி

B: Work experience

பணிஅனுபவம

C: Sports and Physical education

விசளயோைடுமறறுமஉைற லவி

D: Science education

அறிவியல லவி

Correct Alternative :- D

146 Delinquency is __________.

வநறிபிறழஎனபது __________.

A: Inherited character

மரபுவழிகுணநலன

B: Learned reaction

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றறலஎதிரவிசன

C: Autonomous process

தனனிைசையோனவையலமுசற

D: Reflex action

எதிரவிசன

Correct Alternative :- B

147 In the Operant Conditioning theory __________ means that other stimuli similar to the one used in

training may take on the power to produce the response.

வையலபடுஆ நிசலயிறுதத க ோைபோைடில _________

ஆனதுமறறதூணைல ளபயிறசியினகபோதுபயனபடுததபபைைதூணைல

சளபகபோனறுதுலங ல சளஉருவோ குமதிறசனஎடுதது வ ோளகிறதுஎ

னபதசனவபோருைபடுததுகிறது.

A: Extinction

முடிவுறறநிசல

B: Discrimination

கவறுபடுததுதல

C: Stimulus Generalization

தூணைலவபோதுசமபபோடு

D: Orientation

கநோ குசைசம

Correct Alternative :- C

148 __________ may be defined as thinking reflectively and productively and evaluating the evidence;

it enables to grasp deeper meaning of ideas, keep an open mind about different approaches and

perspectives.

__________

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இசணமளநிசலைசிநதசனமறறுமஆ பபூரவமோனகமலுமஆதோரததி

சனமதிபபிை கூடியசிநதசனமுசறஎனவசரயசறவையயலோம,

இைசிநதசனயோனதுஎணண ருதது ளினஆழமோனவபோருளகமலுமபல

கவறுஅணுகுமுசற ளமறறும ருதது சளைைோரநதவவளிபபசையோனம

னகநோ குஇசவ சளகுறி கும.

A: Critical thinking

உயயநிசலசிநதசன

B: Divergent thinking

விரிசிநதசன

C: Abstract thinking

ருததியலசிநதசன

D: Lateral thinking

ப வோைடுசிநதசன

Correct Alternative :- A

149 __________ survey asks teachers and school leaders about working conditions and learning

environments at their schools to help countries face diverse challenges.

_________

ருததோயவோனதுஆசிரியர ளமறறுமபளளிநிரவோகி ளிைமஅவர ளபளளி

ளினபணிநிசலசம ளமறறும றறலசூழல ளபறறிபலதரபபைைைவோல

சளைநதி குமநோடு ளு குஉதவக ைைறிகினறது.

A: UNESCO - UIS

UNESCO - UIS

B: TALIS

TALIS

C: ISES - NCERT

ISES - NCERT

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D: STEPP

STEPP

Correct Alternative :- B

150 Woodworth suggests that, when an attitude is inactive it may be called as __________.

மனபகபோ குவையலறறநிசலயிலஇரு குமகபோதுஅதசன _________

இவவோறோ அசழ லோமஎனஉைவரதபரிநதுசரததோர.

A: distraction

வனைசிதறல

B: inattention

வனமினசம

C: disposition

மோறுபைைகபோ கு

D: disinterest

ஆரவமினசம

Correct Alternative :- C