Question 1

The sky is blue because air molecules in the sky act as tiny

Accepted Answer

A)  mirrors that reflect only blue light.
B)  resonators that scatter blue light.
C)  sources of white light.
D)  prisms.
E)  none of the aboveF) A) and D)
G) A) and C)

Question 2

If you wish to send a beam of laser light from Earth to a space station above the atmosphere near the horizon,aim your laser

Accepted Answer

A)  above your line of sight.
B)  below your line of sight.
C)  along your line of sight.D) A) and B)
E) A) and C)

Question 3

Rainbows exist because light is

Accepted Answer

A)  reflected.
B)  refracted.
C)  both of these
D)  none of the aboveE) B) and D)
F) C) and D)

Question 4

A diver shines light up to the surface of a smooth pond at a 10° angle to the normal.Some light passes into the air above,and the part that reflects back into the water makes an angle to the normal of

Accepted Answer

A)  less than 10°.
B)  10°.
C)  more than 10°.D) None of the above
E) All of the above

Question 5

The inversion of Marjorie's image in a plane mirror is actually an inversion of

Accepted Answer

A)  left and right.
B)  up and down.
C)  front and back.
D)  all of the aboveE) All of the above
F) B) and C)

Question 6

In looking at yourself in a steamy mirror you wipe just enough moisture away to barely see a full view of your face.If you move back from the mirror you'll see

Accepted Answer

A)  a bit more of your face.
B)  a bit less of your face.
C)  the same amount of your face.D) None of the above
E) All of the above

Question 7

If you wish to spear a small blue fish with a red laser beam,you should compensate for refraction and aim your laser

Accepted Answer

A)  directly at the sighted fish.
B)  above the sighted fish.
C)  below the sighted fish.D) A) and C)
E) A) and B)

Question 8

Refraction results from changes in light's

Accepted Answer

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

Question 9

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) C) and D)
G) B) and D)

Question 10

Light from inside a raindrop that exits into the air

Accepted Answer

A)  slows down.
B)  remains at speed c.
C)  speeds up.
D)  none of the aboveE) None of the above
F) A) and B)

Question 11

Light changes direction when traveling from air into glass due to changes in light's

Accepted Answer

A)  intensity.
B)  wavelength.
C)  frequency.
D)  velocity.
E)  amplitude.F) B) and E)
G) None of the above

Question 12

A blue object will appear black when illuminated with

Accepted Answer

A)  blue light.
B)  cyan light.
C)  yellow light.
D)  light.
E)  none of the aboveF) C) and E)
G) D) and E)

Question 13

Because of refraction,the Sun near sunset appears

Accepted Answer

A)  higher in the sky.
B)  lower in the sky.
C)  farther away.D) A) and C)
E) None of the above

Question 14

The image in a pinhole camera is

Accepted Answer

A)  always inverted.
B)  sometimes inverted.
C)  always right-side up.D) None of the above
E) A) and C)

Question 15

When viewing a seascape,what is a major difference in the effect of wearing polarizing sunglasses versus sunglasses that simply cut down on intensity?

Accepted Answer

Much of the glare from surfaces is polar...

Question 16

Which travels fastest in a vacuum?

Accepted Answer

A)  radio waves
B)  light
C)  X-rays
D)  all the sameE) A) and B)
F) A) and D)

Question 17

Refraction occurs when light passing from one medium to another

Accepted Answer

A)  changes frequency.
B)  changes speed.
C)  loses energy.
D)  reflects inward.E) B) and C)
F) All of the above

Question 18

The yellow clothes of a stage performer appear black when illuminated by light that is

Accepted Answer

A)  red.
B)  green.
C)  blue.
D)  all the above combined
E)  none of the aboveF) A) and D)
G) None of the above

Question 19

If you walk at a constant pace across a room of known length,your walking speed is the room length divided by the time to cross the room.Now suppose you repeat your walk but briefly stop along the way to interact with people sitting along your path.What effect does this have on your average speed across the room? How is this analogous to light passing through glass? In what way is it not analogous?

Accepted Answer

When you walk across the room and pause ...

Question 20

The frequency of an electromagnetic wave and the frequency of the vibrating electrons that produce it are

Accepted Answer

A)  nearly the same.
B)  the same.
C)  quite different.D) A) and B)
E) A) and C)

Exam 11: Light

Refraction occurs when light passing from one medium to another

Correct Answer
verified

Light from inside a raindrop that exits into the air

Correct Answer
verified

A diver shines light up to the surface of a smooth pond at a 10° angle to the normal.Some light passes into the air above,and the part that reflects back into the water makes an angle to the normal of

Correct Answer
verified

Object and image for a plane mirror lie

Correct Answer
verified

If you wish to send a beam of laser light from Earth to a space station above the atmosphere near the horizon,aim your laser

Correct Answer
verified

The sky is blue because air molecules in the sky act as tiny

Correct Answer
verified

Rainbows exist because light is

Correct Answer
verified

When viewing a seascape,what is a major difference in the effect of wearing polarizing sunglasses versus sunglasses that simply cut down on intensity?

Correct Answer
verified
Much of the glare from surfaces is polar...
View Answer

If you wish to spear a small blue fish with a red laser beam,you should compensate for refraction and aim your laser

Correct Answer
verified

A blue object will appear black when illuminated with

Correct Answer
verified

The inversion of Marjorie's image in a plane mirror is actually an inversion of

Correct Answer
verified

The frequency of an electromagnetic wave and the frequency of the vibrating electrons that produce it are

Correct Answer
verified

Because of refraction,the Sun near sunset appears

Correct Answer
verified

Light changes direction when traveling from air into glass due to changes in light's

Correct Answer
verified

The yellow clothes of a stage performer appear black when illuminated by light that is

Correct Answer
verified

Correct Answer
verified
When you walk across the room and pause ...
View Answer

In looking at yourself in a steamy mirror you wipe just enough moisture away to barely see a full view of your face.If you move back from the mirror you'll see

Correct Answer
verified

Which travels fastest in a vacuum?

Correct Answer
verified

Refraction results from changes in light's

Correct Answer
verified

The image in a pinhole camera is

Correct Answer
verified

Exam 11: Light

Refraction occurs when light passing from one medium to another

Correct AnswerverifiedShow Answer

Light from inside a raindrop that exits into the air

Correct AnswerverifiedShow Answer

A diver shines light up to the surface of a smooth pond at a 10° angle to the normal.Some light passes into the air above,and the part that reflects back into the water makes an angle to the normal of

Correct AnswerverifiedShow Answer

Object and image for a plane mirror lie

Correct AnswerverifiedShow Answer

If you wish to send a beam of laser light from Earth to a space station above the atmosphere near the horizon,aim your laser

Correct AnswerverifiedShow Answer

The sky is blue because air molecules in the sky act as tiny

Correct AnswerverifiedShow Answer

Rainbows exist because light is

Correct AnswerverifiedShow Answer

When viewing a seascape,what is a major difference in the effect of wearing polarizing sunglasses versus sunglasses that simply cut down on intensity?

Correct AnswerverifiedMuch of the glare from surfaces is polar...View AnswerShow Answer

If you wish to spear a small blue fish with a red laser beam,you should compensate for refraction and aim your laser

Correct AnswerverifiedShow Answer

A blue object will appear black when illuminated with

Correct AnswerverifiedShow Answer

The inversion of Marjorie's image in a plane mirror is actually an inversion of

Correct AnswerverifiedShow Answer

The frequency of an electromagnetic wave and the frequency of the vibrating electrons that produce it are

Correct AnswerverifiedShow Answer

Because of refraction,the Sun near sunset appears

Correct AnswerverifiedShow Answer

Light changes direction when traveling from air into glass due to changes in light's

Correct AnswerverifiedShow Answer

The yellow clothes of a stage performer appear black when illuminated by light that is

Correct AnswerverifiedShow Answer

Correct AnswerverifiedWhen you walk across the room and pause ...View AnswerShow Answer

In looking at yourself in a steamy mirror you wipe just enough moisture away to barely see a full view of your face.If you move back from the mirror you'll see

Correct AnswerverifiedShow Answer

Which travels fastest in a vacuum?

Correct AnswerverifiedShow Answer

Refraction results from changes in light's

Correct AnswerverifiedShow Answer

The image in a pinhole camera is

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Much of the glare from surfaces is polar...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
When you walk across the room and pause ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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