mirror, mirror on the wall!

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Mirror, mirror on the wall!

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Mirror, mirror on the wall!. Image Formation - Plane or Flat Mirror . Magnification M = = - 1 and p = q . Concave, a Spherical Mirror. Some Rules to Live By!. DO NOT TRY THIS AT HOME. Do not steal makeup or dentist’s mirror - PowerPoint PPT Presentation

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Page 1: Mirror, mirror on the wall!

Mirror, mirror on the wall!

Page 2: Mirror, mirror on the wall!

Image Formation - Plane or Flat Mirror

Page 3: Mirror, mirror on the wall!

Magnification M = = -1 and p = q

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Page 4: Mirror, mirror on the wall!

Concave, a Spherical Mirror

Page 5: Mirror, mirror on the wall!

Some Rules to Live By!

Page 6: Mirror, mirror on the wall!

DO NOT TRY THIS AT HOME

Do not steal makeup or dentist’s mirror

Do not crumple up a kid’s first grade homework

Do not hold up mirror to sun, paper near mirror

Do not burn paper

Page 7: Mirror, mirror on the wall!

Image Formation in Concave Mirrors

Page 8: Mirror, mirror on the wall!

• Mirror Equation:

For parallel incoming rays, q is at focal point f = R / 2

1 1 2p q R

Page 9: Mirror, mirror on the wall!
Page 10: Mirror, mirror on the wall!

Lenses

Page 11: Mirror, mirror on the wall!
Page 12: Mirror, mirror on the wall!

• Thick and thin• One, two sided (alike/different)• Converging and Diverging

Page 13: Mirror, mirror on the wall!

SIMILAR!• Concave Mirror & Biconvex Lens • Convex Mirror & Biconcave lens

DIFFERENT!Two radii of curvature, +ve and –ve (back and front)Two focal points FRONT, BACKSign convention: +ve image distance at back of lens (“natural”) location

1 2

1 1 1( 1)( )nf R R

Page 14: Mirror, mirror on the wall!

SIGN CONVENTIONS