Question 1

If you cover half a camera lens with opaque tape, the images produced will be

Accepted Answer

A)  cut in half.
B)  only dimmer.
C)  both of these
D)  neither of theseE) All of the above
F) C) and D)

Question 2

When light is refracted, there is a change in its

Accepted Answer

A)  frequency.
B)  wavelength.
C)  both of these
D)  neither of theseE) All of the above
F) C) and D)

Question 3

You photograph the image of your little sister, who stands 2 meters in front of a plane mirror. Holding the camera beside her head, the distance to her image is

Accepted Answer

A)  1 meter.
B)  2 meters.
C)  3 meters.
D)  4 meters.
E)  none of the aboveF) A) and D)
G) C) and D)

Question 4

A mirage occurs when light travels faster

Accepted Answer

A)  near the ground than higher up.
B)  in less dense air than more dense air higher up.
C)  both of these
D)  neither of theseE) B) and D)
F) C) and D)

Question 5

When sunlight illuminates a page from your Conceptual Physics book it

Accepted Answer

A)  reflects most of it.
B)  absorbs at the text lettering.
C)  both of these
D)  neither of theseE) A) and B)
F) A) and C)

Question 6

Which is a useful property of a prism?

Accepted Answer

A)  internally reflects 100% of incident light
B)  changes directions of light in a variety of ways
C)  re-inverts images
D)  all the above
E)  none of the aboveF) None of the above
G) B) and D)

Question 7

Refraction results from differences in light's

Accepted Answer

A)  frequency.
B)  incident angles.
C)  speed.
D)  all of the above
E)  none of the aboveF) B) and C)
G) D) and E)

Question 8

Your vision is sharpest when your pupil is

Accepted Answer

A)  dilated.
B)  constricted.
C)  same either wayD) B) and C)
E) A) and C)

Question 9

Standing at the shore of a still lake, the reflected view of scenery on the other side of the lake is the view you would see if you were upside down with your eye in the line of sight

Accepted Answer

A)  where it already is.
B)  at the surface of the water where the light reflects.
C)  directly beneath you, as far below water level as you are above.
D)  close to the distant shore.
E)  none of the aboveF) A) and E)
G) None of the above

Question 10

When a light beam emerges from water into air, light speed

Accepted Answer

A)  increases.
B)  decreases.
C)  remains the same.D) A) and B)
E) A) and C)

Question 11

When a light ray in air enters water at 15° from the normal, it

Accepted Answer

A)  always bends toward the normal.
B)  always bends away from the normal.
C)  sometimes bends towards or away from the normal.
D)  does not bend.E) C) and D)
F) A) and D)

Question 12

The index of refraction for crown glass, common in eyeglasses, is 1.52. The index of refraction of a particular plastic lens is 1.76. Light bends more in the

Accepted Answer

A)  crown glass.
B)  plastic lens.
C)  same speed in each.
D)  need more informationE) B) and C)
F) A) and D)

Question 13

Which are consequences of different speeds of light in different media?

Accepted Answer

A)  mirages
B)  rainbows
C)  brilliant colors of diamonds
D)  all of the above
E)  none of the aboveF) C) and D)
G) A) and B)

Question 14

If you look at yourself in a pocket mirror, then hold the mirror farther away, you see

Accepted Answer

A)  more of yourself.
B)  less of yourself.
C)  the same amount of yourself.D) B) and C)
E) All of the above

Question 15

When sunlight from air enters water, light that refracts most is

Accepted Answer

A)  red.
B)  orange.
C)  green.
D)  violet.
E)  all refract the same amountF) B) and C)
G) All of the above

Question 16

Light refracts when traveling from air into glass because of a change in light's

Accepted Answer

A)  intensity.
B)  frequency.
C)  speed.
D)  all of the above
E)  none of the aboveF) A) and E)
G) A) and D)

Question 17

A primary rainbow is brighter than a secondary rainbow because

Accepted Answer

A)  sunlight reaching it is more intense.
B)  there is one less reflection inside the water drops.
C)  larger drops produce primary rainbows.
D)  the secondary bow is a dim reflection of the primary rainbow.
E)  none of the aboveF) B) and E)
G) B) and C)

Question 18

A fish above the surface of water will see better in air if it has goggles that are

Accepted Answer

A)  tinted blue.
B)  hemispherical.
C)  filled with water.
D)  extremely shiny.
E)  none of the aboveF) A) and C)
G) C) and D)

Question 19

Object and image for a plane mirror occur

Accepted Answer

A)  along the same plane.
B)  equal distances from the mirror.
C)  at right angles to each other.
D)  all of the above
E)  none of the aboveF) C) and E)
G) B) and C)

Question 20

Chromatic aberration is a consequence of different colors in a lens having different

Accepted Answer

A)  aberrations.
B)  frequencies.
C)  energies.
D)  critical angles.
E)  speeds.F) A) and E)
G) A) and C)

Exam 28: Reflection and Refraction

Refraction results from differences in light's

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When light is refracted, there is a change in its

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When sunlight illuminates a page from your Conceptual Physics book it

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Which is a useful property of a prism?

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When a light beam emerges from water into air, light speed

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If you cover half a camera lens with opaque tape, the images produced will be

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When sunlight from air enters water, light that refracts most is

Correct AnswerverifiedShow Answer

Your vision is sharpest when your pupil is

Correct AnswerverifiedShow Answer

Which are consequences of different speeds of light in different media?

Correct AnswerverifiedShow Answer

A fish above the surface of water will see better in air if it has goggles that are

Correct AnswerverifiedShow Answer

Standing at the shore of a still lake, the reflected view of scenery on the other side of the lake is the view you would see if you were upside down with your eye in the line of sight

Correct AnswerverifiedShow Answer

Light refracts when traveling from air into glass because of a change in light's

Correct AnswerverifiedShow Answer

A primary rainbow is brighter than a secondary rainbow because

Correct AnswerverifiedShow Answer

You photograph the image of your little sister, who stands 2 meters in front of a plane mirror. Holding the camera beside her head, the distance to her image is

Correct AnswerverifiedShow Answer

A mirage occurs when light travels faster

Correct AnswerverifiedShow Answer

The index of refraction for crown glass, common in eyeglasses, is 1.52. The index of refraction of a particular plastic lens is 1.76. Light bends more in the

Correct AnswerverifiedShow Answer

Object and image for a plane mirror occur

Correct AnswerverifiedShow Answer

Chromatic aberration is a consequence of different colors in a lens having different

Correct AnswerverifiedShow Answer

If you look at yourself in a pocket mirror, then hold the mirror farther away, you see

Correct AnswerverifiedShow Answer

When a light ray in air enters water at 15° from the normal, it

Correct AnswerverifiedShow Answer

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