Question 1

A person standing waist-deep in a swimming pool appears to have short legs because of light

Accepted Answer

A)  reflection.
B)  absorption.
C)  interference.
D)  diffraction.
E)  refraction.F) A) and B)
G) C) and D)

Question 2

Different colors are dispersed by a prism because different colors in the prism have different

Accepted Answer

A)  frequencies.
B)  speeds.
C)  directions.
D)  energies.
E)  none of theseF) B) and E)
G) A) and B)

Question 3

A mirage occurs for road surfaces that are

Accepted Answer

A)  warm.
B)  cold.
C)  wet.
D)  hard.
E)  snowy.F) B) and E)
G) C) and D)

Question 4

Chromatic aberration is absent in

Accepted Answer

A)  converging lenses
B)  diverging lenses.
C)  front surface plane mirrors.D) A) and C)
E) A) and B)

Question 5

When a light ray passes at a non-90 degree angle from water into air,it

Accepted Answer

A)  bends toward the normal.
B)  bends away from the normal.
C)  travels much slower.D) All of the above
E) B) and C)

Question 6

The type of lens that spreads parallel light is a

Accepted Answer

A)  converging lens.
B)  diverging lens.
C)  combination converging-diverging lens.D) B) and C)
E) A) and C)

Question 7

If you walk towards a mirror at a certain speed,the relative speed between you and your image is

Accepted Answer

A)  half your speed.
B)  your speed.
C)  twice your speed.
D)  none of theseE) A) and D)
F) A) and B)

Question 8

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

Accepted Answer

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

Question 9

A mirage is a result of atmospheric

Accepted Answer

A)  reflection.
B)  refraction.
C)  scattering.
D)  dispersion.
E)  aberrations.F) B) and D)
G) A) and D)

Question 10

As monochromatic light passes from air to glass and back to air,changes are observed in its

Accepted Answer

A)  wavelength,frequency,and speed.
B)  wavelength and frequency.
C)  wavelength and speed.
D)  frequency and speed.
E)  None of the above choices are correct.F) A) and E)
G) None of the above

Question 11

A mirage occurs for surfaces that are

Accepted Answer

A)  horizontal.
B)  vertical.
C)  both of theseD) None of the above
E) A) and B)

Question 12

Refraction results from differences in light's

Accepted Answer

A)  frequency.
B)  incident angles.
C)  speed.
D)  all of these
E)  none of theseF) A) and B)
G) C) and D)

Question 13

The refraction of light in a diamond is greater for

Accepted Answer

A)  long-wavelength light.
B)  short-wavelength light.
C)  Both refract the same.D) All of the above
E) B) and C)

Question 14

A surface that is considered rough for infrared waves may be polished for

Accepted Answer

A)  radio waves.
B)  light waves.
C)  both of these
D)  none of theseE) All of the above
F) A) and D)

Question 15

The incident light ray,the reflected light ray,and the normal between them

Accepted Answer

A)  lie in the same plane.
B)  may or may not lie in the same plane.
C)  lie in planes that are perpendicular to one another.D) None of the above
E) B) and C)

Question 16

If a fish looks upward at 45 degrees with respect to the water's surface,it will see

Accepted Answer

A)  the bottom of the pond.
B)  another fish in the pond.
C)  the sky and possibly some hills.
D)  only the water's surface.
E)  none of theseF) A) and B)
G) A) and C)

Question 17

Stars twinkle when seen from the Earth.When seen from the moon,stars

Accepted Answer

A)  twinkle more.
B)  twinkle less.
C)  don't twinkle.D) All of the above
E) B) and C)

Question 18

When light is refracted,there is a change in its

Accepted Answer

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

Question 19

The moon's redness during a lunar eclipse results from

Accepted Answer

A)  only lower frequencies being reflected from the moon.
B)  infrared radiation that is normally blocked.
C)  an optical illusion.
D)  refraction by the Earth's atmosphere of Earth's sunrises and sunsets.
E)  none of theseF) A) and D)
G) C) and D)

Question 20

Refraction causes the bottom of a swimming pool to appear

Accepted Answer

A)  farther down than it actually is.
B)  closer to the surface than it actually is.
C)  neither.D) B) and C)
E) A) and C)

Exam 28: Reflection and Refraction

A person standing waist-deep in a swimming pool appears to have short legs because of light

Correct AnswerverifiedShow Answer

Different colors are dispersed by a prism because different colors in the prism have different

Correct AnswerverifiedShow Answer

If you walk towards a mirror at a certain speed,the relative speed between you and your image is

Correct AnswerverifiedShow Answer

The moon's redness during a lunar eclipse results from

Correct AnswerverifiedShow Answer

The refraction of light in a diamond is greater for

Correct AnswerverifiedShow Answer

A surface that is considered rough for infrared waves may be polished for

Correct AnswerverifiedShow Answer

The type of lens that spreads parallel light is a

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If a fish looks upward at 45 degrees with respect to the water's surface,it will see

Correct AnswerverifiedShow Answer

The incident light ray,the reflected light ray,and the normal between them

Correct AnswerverifiedShow Answer

When a light ray passes at a non-90 degree angle from water into air,it

Correct AnswerverifiedShow Answer

Stars twinkle when seen from the Earth.When seen from the moon,stars

Correct AnswerverifiedShow Answer

A mirage occurs for road surfaces that are

Correct AnswerverifiedShow Answer

A mirage occurs for surfaces that are

Correct AnswerverifiedShow Answer

As monochromatic light passes from air to glass and back to air,changes are observed in its

Correct AnswerverifiedShow Answer

Chromatic aberration is absent in

Correct AnswerverifiedShow Answer

A mirage is a result of atmospheric

Correct AnswerverifiedShow Answer

Refraction causes the bottom of a swimming pool to appear

Correct AnswerverifiedShow Answer

Refraction results from differences in light's

Correct AnswerverifiedShow Answer

When light is refracted,there is a change in its

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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