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GENERAL AWARENESS1. From where are the words 'Satyameva Jayate' taken?a.Ramayan b.Gitac. Mundak Upanishad d.Granthastok2. Who is known as the Father of the Indian Constitution?a.Balasaheb b.Ramasahebc.British constituent d. Dr. B.R. Ambedkar3. Who is senior most election commissioner?a. Sh. V.S.Sampath b.Subash Togadiac.T.N. Krishen d.Subash Rao4. Which is the largest port in India?a.Delhi b.Kolkottac. Mumbai d.Nagaland5. Where is the world's largest solar power project going to be setup?a.Goa b.Kohimac. Maharashtra d.Odisha6.Who is the author of book "Gita Govinda"?a.Managobinda b.Nanakc.Chaitanya d. Jayadeva7. Who was the author of "Hind Swaraj"?a.Jawaharlal Neheru b.Mahatma Gandhic.Rabindranath Tegore d.non of these

8.The Battle of Plassey was fought inA. 1757 B. 1782

C. 1748 D. 17649.The language of discourses of Gautama Buddha wasA. Bhojpuri B. Magadhi

C. Pali D. Sanskrit10.The text of the document called Mahzar, by which Akbar assumed therole of supreme arbiter in the matters of religion is found inA. Nizamuddin's Tabaqat-I-Akbari

B. Arif Quandahari's Tarikh-I-Alfi

C. Abul Fazl's Akbarnama

D. Badauni's Muntakahab-ut-Tawarikh

11.The Parliament of India cannot be regarded as a sovereign bodybecause

A. it can legislate only on subjects entrusted to the Centre by theConstitution

B. it has to operate within the limits prescribed by the Constitution

C.the Supreme Court can declare laws passed by parliament asunconstitutional if they contravene the provisions of theConstitution

D. All of the above12.Who invented the BALLPOINT PEN?A. Biro Brothers

B. Waterman Brothers

C. Bicc Brothers

D. Write Brothers13.What is laughing gas?A. Nitrous Oxide

B. Carbon monoxide

C. Sulphur dioxide

D. Hydrogen peroxide14.The famous Dilwara Temples are situated inA. Uttar Pradesh

B. Rajasthan

C. Maharashtra

D. Madhya Pradesh15.B. C. Roy Award is given in the field ofA. Music B. Journalism

C. Medicine D. Environment

16.Free surface of a liquid behaves like a sheet and tends to contract to thesmallest possible area due to theA. force of adhesion

B. force of friction

C. centrifugal force

D. force of cohesion

17.Supersonic plane fly with the speedA. less than the speed of sound

B. of sound

C. greater than the speed of sound

D. of light18.Movement of cell against concentration gradient is calledA. osmosis

B. active transport

C. diffusion

D. passive transport19.Which was the 1st non Test playing country to beat India in aninternational match?A. Canada B. Sri Lanka

C. Zimbabwe D. East Africa20.The most extensive, commercially useful source of thorium as monazitesand occurs in India atA. Orissa coast

B. Travancore coast

C. West Bengal coast

D. Gujarat coast21.The hazards of radiation belts includeA. deterioration of electronic circuits

B. damage of solar cells of spacecraft

C. adverse effect on living organisms

D. All of the above22.Which of the following is not associated with the UNO?A. ILO B. WHO

C. ASEAN D. All of the above

23.The ratio of width of our National flag to its length isA. 3:5 B. 2:3

C. 2:4 D. 3:424.

20th August is celebrated asA. Earth Day

B. Sadbhavana Divas

C. No Tobacco Day

D. None of these

25.'OS' computer abbreviation usually means ?A. Order of Significance

B. Open Software

C. Operating System

D. Optical Sensor26.What are three types of lasers?A. Gas, metal vapor, rock

B. Pointer, diode, CD

C. Diode, inverted, pointer

D. Gas, solid state, diode27.The central banking functions in India are performed by theCentral Bank of IndiaReserve Bank of IndiaState Bank of IndiaPunjab National BankA. I, II

B. II

C. I

D. II, III28.For which of the following disciplines is Nobel Prize awarded?

A. Physics and Chemistry

B. Physiology or Medicine

C. Literature, Peace and Economics

D. All of the above29.The first recipient of Nehru Award wasA. Martin Luther King

B. Khan Abdul Ghaffar Khan

C. Mother Teresa

D. U Thant30.Kathak is a classical dance ofA. North India

B. Tamilnadu

C. Manipur

D. Kerala31.The imaginary axis at which the earth rotates remains inclined at anangle of ____ to the plane of earth's orbit.A. 44 1/2 º

B. 55 1/2 º

C. 66 1/2 º

D. 0 º32.The Vedas contain all the truth was interpreted byA. Swami Vivekananda

B. Swami Dayananda

C. Raja Rammohan Roy

D. None of the above33.Who was known as Iron man of India?A. Govind Ballabh Pant

B. Jawaharlal Nehru

C. Subhas Chandra Bose

D. Sardar Vallabhbhai Patel34.

According to monetary policy for 2011-12 announced by RBI, theprojection of money supply growth for 2011-12 is placed at _____.

a) 15%b) 16%c) 17%d) 19%35. What is the code name given to the collective international actionunder UN authority to protect the Libyan people against MuammarGaddafi’s forces?

a) Operation Ortsacb) Operation Tridentc) Operation Swift Striked) Operation Odyssey Dawn36. India’s first Titanium Sponge plant, with a capacity of 500 tonnes,recently has been inaugurated by Defence Minister AK Antony at whichof the following locations?a)Kollam(Kerala)b)Dhubri(Assam)c)Angul(Odisha)d) Udupi (Karnatka)37.Author of 'Deserted Village' is

(a) Oliver Goldsmith(b) H.J.Laski(c) A.Dante(d) J.D.Watson38. Who is the first F1 World Champion?(a) Alberto Ascari(b) Nino Farina(c) Michael Schumacher(d) Keke Rosberg39. Who was the first footballer to score 100 goals in the EnglishPremiership?

(a) Alan Shearer(b) David Beckham(c) Cristiano Ronaldo40. Here are some words translated from an artificial language.agnoscrenia means poisonous spiderdelanocrenia means poisonous snakeagnosdeery means brown spider

Which word could mean "black widow spider"?

A. deeryclostagnosB. agnosdelanoC. agnosvitribluninD. Trymuttiagnos41. Synonym for AUGUST

A. CommonB. RidiculousC. DignifiedD. Petty42. The largest freshwater lake in India is ?

A - Dal LakeB - Powai LakeC - Wular LakeD - Chilka Lake43. One Gigabyte is Approximately equal is

(a) 1000,000 bytes(b) 1000,000,000 bytes(c) 1000,000,000,000 bytes(d) None of these44. Who among the following has been elected as new president ofIndian Hockey Federation (IHF)?a) K.P.S Gillb) Vidya Stokesc) R. K. Shettyd) P. J. Thomase) Pargat Singh45. Who is known as 'Lady with the Lamp'?a.Anibesantb.Sarada devic.Meera baid. Florence Nightingale47. Name the Indian American astronaut who begins her 2nd spaceodyssey on July 15,2012?a.Queari Maccarib.Kat Williumc.Richen Mcloryd. Sunita Williams48. Which is the largest public sector bank in India?a.ICICIb.Bank of Barodac. Axis Bankd.State Bank Of India49. Which is the largest area wise state in India?a.karnatakab.mumbaic.rajsthand.utter predesh50.Who is known as Angry Man Of Bollywood?a.Salman Khanb.Ajay Devganc.Amitav Bachand.Rahul Roy

GENERAL INTELLIGENCE AND REASONING

PHYSICS GRADUATE LEVELMULTIPLE CHOICE. Choose the one alternative that best completes thestatement or answers the question.1) If you push for an hour against a stationary wall, you do no workA) on the wall. B) at all. C) both of these D) none of these

2) If you push an object twice as far while applying the same force youdoA) twice as much work.B) four times as much work.C) the same amount of work.

3) If you push an object just as far while applying twice the force youdoA) twice as much work.B) four times as much work.C) the same amount of work.

4) If you push an object with twice the work input for twice the time,your power input isA) twice.B) four times as much.C) the same amount as for half the work in half the time.

5) A job is done slowly, while an identical job is done quickly. Both jobsrequire the same amount of work, but different amounts ofA) energy. B) power. C) both of these. D) none of these.

6) If you do work on an object in half the usual time, your power outputisA) half the usual power output.B) the usual power output.C) twice the usual power output.

7) Exert 1 N for a distance of 1 m in 1 s and you deliver a power ofA) 1 W.B) 2 W.C) 1/3 W.D) 3 W.E) none of these.

8) Do 100 J of work in 50 s and your power output isA) 1/4 W.B) 1/2 W.C) 2 W.D) 4 W.E) more than 4 W.

9) When an object is raised above the ground it gains a certain amountof potential energy. If the same object is raised twice as high it gains

A) four times as much potential energy.B) twice as much potential energy.C) neither of these.

10) When an object is lifted 10 meters, it gains a certain amount ofpotential energy. If the same object is lifted 20 meters, its potentialenergy gain isA) less.B) the same.C) twice as much.D) four times as much.E) more than 4 times as much.

11) A 1000-kg car and a 2000-kg car are hoisted the same distance in agas station. Raising the more massive car requiresA) less work.B) as much work.C) twice as much work.D) four times as much work.E) more than 4 times as much work.

12) An object that has kinetic energy must beA) moving.B) falling.C) at an elevated position.D) at rest.E) none of these.

13) An object that has potential energy may have this energy becauseof itsA) speed.B) acceleration.C) momentum.D) location.E) none of these.

14) Bullets are fired from an airplane in the forward direction ofmotion. The momentum of the airplane will beA) decreased. B) unchanged. C) increased.

15) A clerk can lift containers a vertical distance of 1 meter or can rollthem up a 2 meter-long ramp to the same elevation. With the ramp, theapplied force required is aboutA) half as much. B) twice as much. C) the same.

16) A bow is drawn so that it has 40 J of potential energy. When fired,the arrow will ideally have a kinetic energy ofA) less than 40 J. B) more than 40 J. C) 40 J.

17) When a car is braked to a stop, its kinetic energy is transformed toA) stopping energy.

B) potential energy.C) energy of motion.D) energy of rest.E) heat.

18) A hydraulic press, like a simple lever, properly arranged is capableof multiplying energy input.A) sometimes true B) always false C) always true

19) A hydraulic press, like a simple lever, properly arranged is capableof multiplying force input.A) true B) false

A marble is rolling back and forth along the path shown.

Figure 7-A

20) At position A, is the marble's kinetic energy less than, greater than,or the same as its kinetic energy when it is at B?A) less B) greater C) the same

A small ball tied to a string swings without air resistance, beginningfrom rest at point A.The string snags on a nail at point P, causing the ball to move in a smallcircle.

Figure 7-B

21) The ball has maximum potential energy at pointA) A. B) B. C) C. D) D. E) E.

22) The ball has maximum kinetic energy at pointA) A. B) B. C) C. D) D. E) E.

23) The ball has maximum speed at pointA) A. B) B. C) C. D) D. E) E.

A small bead slides without friction along the wire shown here,beginning at point A.The wire does not touch itself at point C, so the bead has room to slidepast that point.

Figure 7-C

24) The bead has maximum kinetic energy at pointA) A. B) B. C) C. D) D. E) F.

25) The bead has maximum potential energy at pointA) A. B) B. C) C. D) D. E) F.

26) The bead has maximum speed at point

A) A. B) B. C) C. D) D. E) F.

27) No work is done by gravity on a bowling ball that rolls along a bowlingalley becauseA) no force acts on the ball.B) no distance is covered by the ball.C) the force on the ball is at right angles to the ball's motion.D) no potential energy is being converted to kinetic energy.E) its kinetic energy remains constant.

28) Which requires more work: lifting a 50-kg sack vertically 2 metersor lifting a 25-kg sack vertically 4 meters?A) lifting the 50-kg sackB) lifting the 25-kg sackC) Both require the same amount of work.

29) A 50-kg sack is lifted 2 meters in the same time as a 25-kg sack islifted 4 meters. The power expended in raising the 50-kg sackcompared to the power used to lift the 25-kg sack isA) twice as much. B) half as much. C) the same.

30) A TV set is pushed a distance of 2 m with a force of 20 N that is inthe same direction as the set moves. How much work is done on theset?A) 2 J B) 10 J C) 20 J D) 40 J E) 80 J

31) It takes 40 J to push a large box 4 m across a floor. Assuming the pushis in the same direction as the move, what is the magnitude of the forceon the box?A) 4 NB) 10 NC) 40 ND) 160 NE) none of these

32) A 2-kg mass is held 4 m above the ground. What is theapproximate potential energy of the mass with respect to the ground?A) 20 JB) 40 JC) 60 JD) 80 JE) none of these.

33) A 2-kg mass has 40 J of potential energy with respect to theground. Approximately how far is it located above the ground?A) 1 mB) 2 mC) 3 mD) 4 mE) none of these

34) A heavy pile driver starting from rest falls on a pile with a forcethat depends onA) the original height of the driver.B) the original potential energy of the driver.C) the distance the pile is moved.D) all of these.E) none of these.

35) Using 1000 J of work, a toy elevator is raised from the ground floorto the second floor in 20 seconds. How much power does the elevatoruse?A) 20 W B) 50 W C) 100 W D) 1000 W E) 20,000 W

36) One end of a long, uniform log is raised to shoulder level. Anotheridentical log is raised at its center to the same level. Raising the secondlog requires aboutA) the same amount of work.B) twice as much work.C) more than twice as much work.

37) Two identical arrows, one with twice the kinetic energy of theother, are fired into a hay bale. The faster arrow will penetrateA) the same distance as the slower arrow.B) twice as far as the slower arrow.C) four times as far as the slower arrow.D) more than four times as far as the slower arrow.E) none of these.

38) A car moves 4 times as fast as another identical car. Compared to theslower car, the faster car hasA) 4 times the KE. B) 8 times the KE.C) 12 times the KE. D) 16 times the KE.

39) A ball is projected into the air with 100 J of kinetic energy which istransformed to gravitational potential energy at the top of its trajectory.When it returns to its original level after encountering air resistance, itskinetic energy isA) less than 100 J. B) more than 100 J.C) 100 J. D) not enough information given.

40) Strictly speaking, if any electrical device in your car is turned on(such as an air conditioner, headlights, or even a radio) more gasoline isburned by the engine. This statement isA) totally false.B) true only if the car's engine is running.C) true only if the car's engine is stopped.D) almost always true.E) none of these.

41) A machine puts out 100 Watts of power for every 1000 Watts putinto it. The efficiency of the machine is

A) 10%.B) 50%.C) 90%.D) 110%.E) none of these.

42) An ungloved fist will do more damage to a jaw than a gloved fist.The reason for this is that the ungloved fistA) delivers a larger impulse to the jaw. B) exerts a larger force on thejaw.C) has less air resistance on it. D) none of these.

43) A woman lifts a box from the floor. She then moves with constantspeed to the other side of the room, where she puts the box down. Howmuch work does she do on the box while walking across the floor atconstant speed?A) zero JB) more than zero JC) more information needed to determine

44) A car moving at 50 km/hr skids 20 m with locked brakes. How farwill the car skid with locked brakes if it is traveling at 150 km/hr?A) 20 m B) 60 m C) 90 m D) 120 m E) 180 m

45) Which has greater kinetic energy, a car traveling at 30 km/hr or acar of half the mass traveling at 60 km/hr?A) the 30 km/hr carB) the 60 km/hr carC) Both have the same kinetic energy.

46) A diver who weighs 500 N steps off a diving board that is 10 mabove the water. The diver hits the water with kinetic energy ofA) 10 J.B) 500 J.C) 510 J.D) 5000 J.E) more than 5000 J.

47) Consider a hydraulic press. When the input piston is depressed 20cm, the output piston is observed to move 1 cm. On the same press, aninput force of 1 N can raise no more thanA) 1 N. B) 10 N. C) 20 N. D) 21 N.

48) A 2500-N pile-driver ram falls 10 m and drives a post 0.1 m into theground. The average impact force on the ram isA) 2,500 N. B) 25,000 N. C) 250,000 N. D) 2,500,000 N.

49) A pulley system raises a 1000-N load with 100 N of input force. Theefficiency of the system isA) 10%.B) 90%.

C) 100%.D) 1000%.E) not enough information given.

50) A jack system will increase the potential energy of a heavy load byno more than 1000 J with a work input of 2000 J. The efficiency of thejack system is no more thanA) 10%.B) 20%.C) 50%.D) 80%.E) not enough information given.

51) Which requires the most amount of work on the brakes of a car?A) slowing down from 100 km/h to 70 km/hB) slowing down from 70 km/h to a stopC) equal amounts for either

52) A car that travels twice as fast as another when braking to a stopwill skidA) twice as far.B) four times as far.C) depends on the mass of the cars.

53) Two identical arrows, one with twice the speed of the other, arefired into a hay bale. The faster arrow will penetrateA) the same distance as the slower arrow.B) twice as far as the slower arrow.C) four times as far as the slower arrow.D) more than four times as far as the slower arrow.E) none of these.

54) A person on the edge of a roof throws a ball downward. It strikesthe ground with 100 J of kinetic energy. The person throws anotheridentical ball upward with the same initial speed, and this too falls tothe ground. Neglecting air resistance, the second ball hits the groundwith a kinetic energy ofA) 100 J.B) 200 J.C) less than 100 J.D) more than 200 J.E) none of these.

55) If a power plant is 30% efficient, and the transmission system thatdelivers power to consumers is 60% efficient, then the overall efficiencyisA) 90%.B) 60%.C) 30%.D) 18%.E) none of these.

56) How many Joules of energy are in one kilowatt-hour?A) 1B) 60C) 60,000D) 3.6 millionE) none of these

57) A car's engine is 20% efficient. When cruising, the car encountersan average retarding force of 1000 N. If the energy content of gasolineis 40 megajoules per liter, how many kilometers per liter does the carget?A) 14B) 12C) 10D) 8E) none of these

58) Suppose a miracle car has a 100% efficient engine and burns fuelthat has a 40-megajoules-per-liter energy content. If the air drag andoverall frictional forces on this car traveling at highway speeds total1000 N, what is the overall limit in distance per liter it could be drivenon the highway?A) 30 kmB) 40 kmC) 50 kmD) more than 50 kmE) not enough information

59) On a sunny day about 500 watts of solar power strikes each squaremeter of the earth's surface. If a solar automobile has 4 square metersof collector area and 100% efficient collectors and motor, its poweroutput is aboutA) 0.27 hp. B) 2.7 hp. C) 27 hp. D) 270 hp.

60) A flower pot of mass m falls from rest to the ground below, adistance h. Which statement is correct?A) The speed of the pot when it hits the ground is proportional to h.B) The KE of the pot when it hits the ground is proportional to h.C) The KE of the pot when it hits the ground does not depend on m.D) The speed of the pot when it hits the ground depends on m.E) None of these is correct.

61) Whereas impulse involves the time that a force acts, work involvestheA) distance that a force acts.B) time and distance that a force acts.C) acceleration that a force produces.

62) When a rifle is fired it recoils so both the bullet and rifle are set inmotion. The rifle and bullet ideally acquire equal

A) but opposite amounts of momentum. B) amounts of kinetic energy.C) both of these. D) none of these.

63) A moving object hasA) speed.B) velocity.C) momentum.D) energy.E) all of these.

64) What does an object have when moving that it never has when atrest?A) momentumB) energyC) massD) inertiaE) none of these

65) If an object has kinetic energy, then it also must haveA) impulse.B) momentum.C) acceleration.D) force.E) none of these.

66) If the speed of a moving object doubles, then what else doubles?A) momentumB) kinetic energyC) accelerationD) all of theseE) none of these

67) An object at rest may haveA) speed.B) velocity.C) energy.D) momentum.E) none of these.

68) A feather and a coin dropped in a vacuum fall with equalA) forces.B) momenta.C) accelerations.D) kinetic energies.E) none of these.

69) A heavy and a light object released from the same height in avacuum have equalA) weights.B) momenta.C) energies.

D) all of these.E) none of these.

70) Two pool balls, each moving at 2 m/s, roll toward each other andcollide. Suppose after bouncing apart, each moves at 4 m/s. Thiscollision violates conservation ofA) momentum. B) kinetic energy. C) both of these. D) none of these.

71) Compared to a recoiling rifle, the bullet fired has a greaterA) momentum. B) kinetic energy. C) none of these. D) both of these.

72) A bullet has more kinetic energy than the recoiling rifle from whichit is fired is because the force on the bullet acts over a longerA) time. B) distance.C) both of these. D) neither of these.

73) An open freight car rolls friction free along a horizontal track in apouring rain that falls vertically. As water accumulates in the car, thecar's speedA) increases. B) decreases. C) doesn't change.

74) A car has a head-on collision with another car with the samemagnitude of momentum. An identical car driving with the same speedas the first car runs into an enormously massive wall. The greaterimpulse will occur on the car that is in the collision with theA) approaching car.B) the wall.C) both impulses will be the same.

A popular swinging-balls apparatus (shown below) consists of analigned row of identical elastic balls suspended by strings so that theballs barely touch each other. When two balls are lifted from one endand released, they strike the row and two balls pop out from the otherend.

Figure 7-D

75) If instead one ball popped out with twice the velocity of the two,this would be a violation of conservation ofA) momentum. B) energy. C) both of these. D) none of these.

76) If instead one ball popped out with kinetic energy equal to thecombined kinetic energy of the two, this would be a violation ofconservation ofA) momentum. B) energy.C) both of these. D) neither of these.

77) A golf ball is thrown at and bounces backward from a massivebowling ball that is initially at rest. After the collision, compared to thegolf ball, the bowling ball has moreA) momentum, but less kinetic energy.

B) kinetic energy, but less momentum.C) momentum and more kinetic energy.D) but it has less momentum and less kinetic energy.E) not enough information is given to say.

78) A piece of taffy slams into and sticks to another identical piece oftaffy that is at rest. The momentum of the two pieces stuck togetherafter the collision is the same as it was before the collision, but this isnot true of the kinetic energy, which is partly turned into heat. Whatpercentage of the kinetic energy is turned into heat?A) 0%B) 25%C) 50%D) 75%E) not enough information given

79) Two identical freight cars roll without friction (one at 1 m/s, theother at 2 m/s) toward one another on a level track. They collide,couple together, and roll away in the direction thatA) the slower car was initially going.B) the faster car was initially going.C) neither of these -- they stop.

80) Two 5000-kg freight cars roll without friction (one at 1 m/s, theother at 2 m/s) toward one another on a level track. They collide,couple, and roll away together with a combined momentum ofA) zero. B) 5000 kg m/s. C) 10,000 kg m/s. D) 15,000 kg m/s.

81) Two identical freight cars roll without friction towards each otheron a level track. One rolls at 2 m/s and the other rolls at 1 m/s. Afterthe cars collide, they couple and roll together with a speed ofA) 0.5 m/s.B) 0.33 m/s.C) 0.67 m/s.D) 1.0 m/s.E) none of these.

82) Two 5000-kg freight cars roll without friction (one at 1 m/s, theother at 2 m/s) toward each other on a level track. Thus one car'skinetic energy is 2500 J and the other's is 10,000 J. Before they collidetheir total kinetic energy isA) 1250 J. B) 2500 J. C) 7500 J. D) 10,000 J. E) 12,500 J.

83) Two 5000-kg freight cars roll toward each other (one at 1 m/s, theother at 2 m/s) on a level track. Thus before they collide one car'skinetic energy is 2500 J and the other's is 10,000 J. After they collide(and couple together) their total kinetic energy isA) 1250 J. B) 2500 J. C) 7500 J. D) 10,000 J. E) 12,500 J.

84) Two 5000-kg freight cars roll toward one another (one at 1 m/sand the other at 2 m/s) on a level track. Thus before they collide one

car's kinetic energy is 2500 J and the other's is 10,000 J. They collideand couple together. The amount of kinetic energy turned into heat(mostly warming the couplers) in the collision isA) 1250 J. B) 2500 J. C) 7500 J. D) 10,000 J. E) 11,250 J.

85) A 1-kg ball dropped from a height of 2 m rebounds only 1.5 m afterhitting the ground. The amount of energy converted to heat is aboutA) 0.5 J.B) 1.0 J.C) 1.5 J.D) 2.0 J.E) more than 2.0 J.

86) A sandbag in outer space moves at 3 m/s and collides and sticks toa half-as-massive sandbag initially at rest. Compared to the kineticenergy of the moving bag before collision, the kinetic energy of thecoupled bags after collision isA) one third. B) two thirds.C) three quarters. D) not enough information to say.

87 The length of second’s pendulum on the surface of earth is 1 m.the length of same pendulum on the surface of moon, whereacceleration due to gravity is (1/6)th of the g on the surface ofearth is(a) 36 m (b) 1 m

(c) (d)

88 A mass M is suspended from a light spring. If the additional massm is added, it displaces the spring by a distance x. now thecombined mass will oscillate on the spring with time periodequals to

(a) (b)

(c) (d)

89 The displacement of particle performing simple harmonic motionis given by, x 8 sin t 6 cos t, where distance is in cm andtime is in second. The amplitude of motion is(a) 10 cm (b) 14 cm(c) 2 cm (d) 3.5 cm

90 A simple pendulum is set up in a trolley which moves to the rightwith an acceleration a on a horizontal plane. Then the thread ofthe pendulum in the mean position makes an angle with thevertical

(a)

(b)

(c)

(d)

91 The angular velocity and the amplitude of a simple pendulum is‘’ and ‘a’ respectively. At a displacement x from the meanposition its kinetic energy is T and potential energy is V, then theratio of T to V is

(a) (b)

(c) (d)92 A particle executes S.H.M. of amplitude A. at what distance from

mean position its kinetic energy is equal to its potential energy?(a) 0.51 A (b) 0.61 A(c) 0.71 A (d) 0.81 A

93 A simple pendulum of length l and mass (bob) m is suspendedvertically. The string makes an angle with the vertical. Therestoring force acting on the pendulum, is(a) mg tan (b) mg sin (c) mg sin (d) mg cos

94 The mass and diameter of a planet are twice those of earth. theperiod of oscillation of pendulum on this planet will be (if it is asecond’s pendulum on earth)

(a) (b)

(c) 2 second (d)

95 A second’s pendulum is placed in space laboratory orbitingaround the earth at a height 3R from earth’s surface where R isearth’s radius. The time period of the pendulum will be

(a) Zero (b)(c) 4 s (d) Infinite

96.Light year is a unit ofA. time B. distance

C. light D. intensity of light

97.Pa(Pascal) is the unit forA. thrust B. pressure

C. frequency D. conductivity98.If two bodies of different masses, initially at rest, are acted upon by thesame force for the same time, then the both bodies acquire the sameA. velocity B. momentum

C. acceleration D. kinetic energy99.One thousand microns is equal toA. 10-3m B. 10-6m

C. 10-9m D. 10-12m100.Superconductors are substances whichA. conduct electricity at low temperature

B. offer high resistance to the flow of current

C. offer no resistance to the flow of electricity

D. conduct electricity at high temperatures

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