Question 1

Light travels through non-cubic transparent crystals

Accepted Answer

A)  in mutually perpendicular directions.
B)  without refracting.
C)  and becomes polarized in the process.
D)  at different speeds along different optic axes.
E)  none of the above

Question 2

A pair of crossed Polaroids will transmit light

Accepted Answer

A)  of sufficiently long wavelengths.
B)  that itself is polarized.
C)  if a third Polaroid at about 45 degrees is inserted between the two.

Question 3

A thin film appears magenta when illuminated with white light. The color being cancelled by destructive interference is

Accepted Answer

A)  red.
B)  green.
C)  white.
D)  blue.
E)  none of the above

Question 4

Interference is a property of

Accepted Answer

A)  light waves.
B)  sound waves.
C)  water waves.
D)  all of the above
E)  none of the above

Question 5

A dolphin perceives greater detail by emitting sounds of

Accepted Answer

A)  lower frequency.
B)  higher frequency.
C)  greater intensity.
D)  greater speed.
E)  none of the above

Question 6

When waves from a pair of closely-spaced slits arrive in phase

Accepted Answer

A)  a bright fringe is produced.
B)  a dark fringe is produced.
C)  both bright and dark fringes are produced.
D)  none of the above

Question 7

Colors seen when gasoline forms a thin film on water illustrate

Accepted Answer

A)  refraction.
B)  reflection.
C)  dispersion.
D)  polarization.
E)  interference.

Question 8

Light will pass through a pair of Polaroids when their axes are

Accepted Answer

A)  45 degrees to each other.
B)  parallel.
C)  either of these
D)  neither of these

Question 9

Newton's rings will be closer together if illuminated with

Accepted Answer

A)  red light.
B)  blue light.
C)  white light.
D)  none of the above

Question 10

Thomas Young's two-source interference patterns demonstrate the

Accepted Answer

A)  particle nature of light.
B)  wave nature of light.
C)  both of these
D)  neither of these

Question 11

Radio waves that diffract more around small buildings are

Accepted Answer

A)  AM.
B)  FM.
C)  both diffract equally

Question 12

The glare seen from water is largely

Accepted Answer

A)  horizontally polarized.
B)  vertically polarized.
C)  unpolarized.

Question 13

In the double-slit experiment, fringes are more widely spaced when illumination is with monochromatic

Accepted Answer

A)  low-frequency light.
B)  high-frequency light.
C)  polarized light.
D)  none of the above

Question 14

A painting looks less flat when viewed with

Accepted Answer

A)  one eye.
B)  both eyes.
C)  Polaroid glasses.

Question 15

The function of polarizing filters in viewing 3-D slides or movies is to provide each eye

Accepted Answer

A)  the ability to see parallax.
B)  a balanced intensity.
C)  an independent left or right-eye view.
D)  a stereoscopic view.
E)  with light polarized at right angles to each other.

Question 16

Parallax is evident when you view objects

Accepted Answer

A)  with one eye.
B)  with both eyes.
C)  with one or both eyes.
D)  in a completely dark room.

Question 17

Monochromatic light is light of a single

Accepted Answer

A)  wavelength.
B)  frequency.
C)  color.
D)  all of the above
E)  none of the above

Question 18

Light from two closely-spaced stars cannot produce a steady interference pattern due to

Accepted Answer

A)  incoherence.
B)  the inherent instability of the atmosphere.
C)  their different radial distances.
D)  their non-point like natures.
E)  closely spaced stars not producing interference patterns.

Question 19

A razor blade nicely shows diffraction fringes when illuminated with

Accepted Answer

A)  ultraviolet light.
B)  monochromatic light.
C)  sunlight.
D)  all of the above
E)  none of the above

Question 20

A thin film appears yellow when illuminated with white light. The color being cancelled by destructive interference is

Accepted Answer

A)  red.
B)  green.
C)  white.
D)  blue.
E)  none of the above

Exam 29: Light Waves

A painting looks less flat when viewed with

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A thin film appears yellow when illuminated with white light. The color being cancelled by destructive interference is

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Colors seen when gasoline forms a thin film on water illustrate

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In the double-slit experiment, fringes are more widely spaced when illumination is with monochromatic

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Radio waves that diffract more around small buildings are

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Light from two closely-spaced stars cannot produce a steady interference pattern due to

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Newton's rings will be closer together if illuminated with

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Thomas Young's two-source interference patterns demonstrate the

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Monochromatic light is light of a single

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Light will pass through a pair of Polaroids when their axes are

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A pair of crossed Polaroids will transmit light

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The function of polarizing filters in viewing 3-D slides or movies is to provide each eye

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Parallax is evident when you view objects

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Light travels through non-cubic transparent crystals

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A razor blade nicely shows diffraction fringes when illuminated with

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Interference is a property of

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When waves from a pair of closely-spaced slits arrive in phase

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A dolphin perceives greater detail by emitting sounds of

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A thin film appears magenta when illuminated with white light. The color being cancelled by destructive interference is

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The glare seen from water is largely

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