Question 1

When light reflects from a polished surface,there is a change in its

Accepted Answer

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

Question 2

When you read from a printed page,you're seeing reflected light that is

Accepted Answer

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

Question 3

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) None of the above
E) All of the above

Question 4

Metals are shiny because

Accepted Answer

A)  they reflect 100% of incident light.
B)  they are poor absorbers of light.
C)  loose electrons vibrate to the oscillations of any incident light.
D)  none of the aboveE) A) and C)
F) A) and D)

Question 5

Describe a model for explaining how light is transmitted through glass.

Accepted Answer

According to the model of light presente...

Question 6

To see his full height,Blinky Bill who is 1.0 meter tall needs a mirror that is at least

Accepted Answer

A)  0.33 m tall.
B)  0.50 m tall.
C)  0.75 m tall.
D)  1 m tall.
E)  depends on distance from the mirror.F) C) and E)
G) A) and B)

Question 7

The direction of vibration for an electron and the plane of polarization of the light it emits

Accepted Answer

A)  are the same.
B)  are at right angles to each other.
C)  may or may not be at right angles to each other.
D)  are independent of each other.E) B) and D)
F) All of the above

Question 8

Atmospheric refraction makes the daylight hours

Accepted Answer

A)  longer.
B)  shorter.
C)  neitherD) All of the above
E) B) and C)

Question 9

A wave with a high frequency has a relatively

Accepted Answer

A)  short wavelength.
B)  long wavelength.
C)  both of these
D)  none of the aboveE) A) and B)
F) B) and C)

Question 10

If a light signal and a radio signal were emitted simultaneously from the Moon,the first signal to reach Earth would be

Accepted Answer

A)  radio.
B)  light.
C)  both of these
D)  none of the aboveE) B) and C)
F) B) and D)

Question 11

When light from air passes through a prism,light of all frequencies

Accepted Answer

A)  slow down.
B)  remain at speed c.
C)  speed up.
D)  none of the aboveE) B) and D)
F) A) and C)

Question 12

The color to which human eyes are most sensitive is

Accepted Answer

A)  red.
B)  yellow-green.
C)  blue.
D)  all the sameE) All of the above
F) B) and C)

Question 13

Which of the following is fundamentally different from the others?

Accepted Answer

A)  sound waves
B)  X rays
C)  gamma rays
D)  light waves
E)  radio wavesF) A) and E)
G) A) and B)

Question 14

An electron vibrating to and fro 1000 times per second generates an electromagnetic wave having a

Accepted Answer

A)  period of 1000 s.
B)  speed of 1000 m/s.
C)  wavelength of 1000 m.
D)  frequency of 1000 Hz.E) A) and B)
F) A) and C)

Question 15

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) A) and D)
G) B) and D)

Question 16

The amount of light reflected from the front surface of common window glass is about

Accepted Answer

A)  4%.
B)  8%.
C)  40%.
D)  92%.
E)  96%.F) C) and D)
G) C) and E)

Question 17

Consider the appearance of an American flag submerged deep in water.The white stars and red stripes appear

Accepted Answer

A)  cyan and red.
B)  cyan and blue.
C)  red and black.
D)  cyan and black.E) A) and B)
F) B) and C)

Question 18

A whitish sky is evidence that the atmosphere contains

Accepted Answer

A)  predominantly small particles.
B)  predominantly large particles.
C)  a mixture of particle sizes.
D)  pollutants.E) B) and D)
F) C) and D)

Question 19

A rough surface for infrared waves may be polished for

Accepted Answer

A)  radio waves.
B)  light waves.
C)  both of these
D)  neitherE) B) and C)
F) B) and D)

Question 20

The colors dispersed by a prism are due to different light

Accepted Answer

A)  speeds inside the prism.
B)  directions inside the prism.
C)  energies inside the prism.
D)  none of the aboveE) A) and B)
F) None of the above

Exam 11: Light

An electron vibrating to and fro 1000 times per second generates an electromagnetic wave having a

Correct AnswerverifiedShow Answer

When light from air passes through a prism,light of all frequencies

Correct AnswerverifiedShow Answer

Metals are shiny because

Correct AnswerverifiedShow Answer

The direction of vibration for an electron and the plane of polarization of the light it emits

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

When you read from a printed page,you're seeing reflected light that is

Correct AnswerverifiedShow Answer

The color to which human eyes are most sensitive is

Correct AnswerverifiedShow Answer

A wave with a high frequency has a relatively

Correct AnswerverifiedShow Answer

When light reflects from a polished surface,there is a change in its

Correct AnswerverifiedShow Answer

Which of the following is fundamentally different from the others?

Correct AnswerverifiedShow Answer

The amount of light reflected from the front surface of common window glass is about

Correct AnswerverifiedShow Answer

If a light signal and a radio signal were emitted simultaneously from the Moon,the first signal to reach Earth would be

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

To see his full height,Blinky Bill who is 1.0 meter tall needs a mirror that is at least

Correct AnswerverifiedShow Answer

The colors dispersed by a prism are due to different light

Correct AnswerverifiedShow Answer

A whitish sky is evidence that the atmosphere contains

Correct AnswerverifiedShow Answer

A rough surface for infrared waves may be polished for

Correct AnswerverifiedShow Answer

Atmospheric refraction makes the daylight hours

Correct AnswerverifiedShow Answer

Consider the appearance of an American flag submerged deep in water.The white stars and red stripes appear

Correct AnswerverifiedShow Answer

Describe a model for explaining how light is transmitted through glass.

Correct AnswerverifiedAccording to the model of light presente...View AnswerShow Answer

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According to the model of light presente...
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