Question 1

Red sunsets are due to light of lower frequencies that

Accepted Answer

A)  is scattered from larger particles in the air.
B)  is refracted from larger particles in the air.
C)  is reflected by clouds and relatively large particles in the air.
D)  survive being scattered in the air.
E)  appear reddish orange to the eye.F) B) and D)
G) B) and E)

Question 2

The color of an opaque object is the same as the light that is

Accepted Answer

A)  transmitted.
B)  absorbed.
C)  reflected.
D)  all of the above
E)  none of the aboveF) None of the above
G) All of the above

Question 3

When white light goes from air into water, the color that refracts the most is

Accepted Answer

A)  red.
B)  orange.
C)  green.
D)  violet.
E)  all refract the same amount.F) C) and D)
G) A) and C)

Question 4

Rainbows are not usually seen as complete circles because

Accepted Answer

A)  the ground is usually in the way.
B)  they are actually elliptical.
C)  they have no bottom part.
D)  raindrops are not perfectly round.
E)  rainbows are arched shaped.F) None of the above
G) All of the above

Question 5

Different colors of light correspond to different light

Accepted Answer

A)  velocities.
B)  intensities.
C)  polarities.
D)  frequencies.
E)  none of the aboveF) A) and B)
G) B) and C)

Question 6

Relative to its average speed in air, the average speed of a beam of light in glass is

Accepted Answer

A)  more.
B)  the same.
C)  less.D) B) and C)
E) None of the above

Question 7

The solar radiation curve is a graph of

Accepted Answer

A)  colors of sunlight versus their frequencies.
B)  colors of sunlight versus their wavelengths.
C)  the path of the Sun about Earth.
D)  brightness versus frequency.
E)  intensity versus distance from the Sun.F) C) and D)
G) B) and C)

Question 8

The greenish blue of water is evidence for the

Accepted Answer

A)  reflection of greenish-blue light.
B)  reflection of red light.
C)  absorption of greenish-blue light.
D)  absorption of red light.
E)  interaction between green and blue frequencies of light.F) A) and B)
G) All of the above

Question 9

When you look at yourself in a pocket mirror, and 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) A) and C)

Question 10

The average speed of light is greatest in

Accepted Answer

A)  red glass.
B)  orange glass.
C)  green glass.
D)  blue glass.
E)  same in allF) A) and E)
G) C) and D)

Question 11

Which has the shortest wavelength?

Accepted Answer

A)  radio waves
B)  infrared waves
C)  X rays
D)  ultraviolet waves
E)  light wavesF) A) and E)
G) A) and C)

Question 12

If the atmosphere were about 40 times thicker, at noon the Sun would appear

Accepted Answer

A)  red-orange.
B)  orange-green.
C)  green-blue.
D)  blue-violet.
E)  none of the aboveF) B) and E)
G) A) and B)

Question 13

A yellow-white candle flame reflected from a piece of red glass shows two images, one from each surface.

Accepted Answer

A)  both images are yellow-white.
B)  one image is yellow-white and the other image is red.
C)  both images are red.
D)  both images are reddish yellow.E) A) and D)
F) B) and D)

Question 14

Object and image for a plane mirror lie

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) None of the above
G) B) and E)

Question 15

If molecules in the sky scattered red-orange light instead of blue light, sunsets would be

Accepted Answer

A)  orange.
B)  yellow.
C)  green.
D)  blue.
E)  none of the aboveF) A) and B)
G) None of the above

Question 16

Colors seen on TV result from color

Accepted Answer

A)  addition.
B)  subtraction.
C)  either
D)  neitherE) All of the above
F) None of the above

Question 17

An important feature of red sunsets is the

Accepted Answer

A)  scattering of lower frequencies by larger particles in the air.
B)  longer path of air through which sunlight travels.
C)  lower frequencies of light emitted late in the day by the Sun.
D)  absorption effects of the smaller particles in the air.E) A) and B)
F) B) and C)

Question 18

Rainbows exist because light is

Accepted Answer

A)  reflected.
B)  refracted.
C)  both
D)  neitherE) A) and B)
F) C) and D)

Question 19

What accounts for the additional few minutes of sunlight we experience daily, before sunrise and after sunset?

Accepted Answer

Atmospheric refraction adds to daylight ...

Question 20

Compared with the speed of light in a vacuum, the speed of light in the empty space between molecules in glass is

Accepted Answer

A)  more.
B)  the same.
C)  less.D) A) and B)
E) A) and C)

Exam 11: Light

The average speed of light is greatest in

Correct AnswerverifiedShow Answer

Red sunsets are due to light of lower frequencies that

Correct AnswerverifiedShow Answer

Object and image for a plane mirror lie

Correct AnswerverifiedShow Answer

An important feature of red sunsets is the

Correct AnswerverifiedShow Answer

The greenish blue of water is evidence for the

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Different colors of light correspond to different light

Correct AnswerverifiedShow Answer

What accounts for the additional few minutes of sunlight we experience daily, before sunrise and after sunset?

Correct AnswerverifiedAtmospheric refraction adds to daylight ...View AnswerShow Answer

A yellow-white candle flame reflected from a piece of red glass shows two images, one from each surface.

Correct AnswerverifiedShow Answer

If molecules in the sky scattered red-orange light instead of blue light, sunsets would be

Correct AnswerverifiedShow Answer

When white light goes from air into water, the color that refracts the most is

Correct AnswerverifiedShow Answer

Colors seen on TV result from color

Correct AnswerverifiedShow Answer

Relative to its average speed in air, the average speed of a beam of light in glass is

Correct AnswerverifiedShow Answer

Rainbows exist because light is

Correct AnswerverifiedShow Answer

The color of an opaque object is the same as the light that is

Correct AnswerverifiedShow Answer

The solar radiation curve is a graph of

Correct AnswerverifiedShow Answer

Rainbows are not usually seen as complete circles because

Correct AnswerverifiedShow Answer

Compared with the speed of light in a vacuum, the speed of light in the empty space between molecules in glass is

Correct AnswerverifiedShow Answer

If the atmosphere were about 40 times thicker, at noon the Sun would appear

Correct AnswerverifiedShow Answer

Which has the shortest wavelength?

Correct AnswerverifiedShow Answer

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Atmospheric refraction adds to daylight ...
View Answer

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