| 151. |
| Which of the following light sources
and apparatus will have the light disperse? Answer
A. Sunlight and I.
B. Sunlight and II.
C. Monochromatic light and I.
D. Monochromatic light and II. |
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| 152. |
| Which of the diagrams below does not
accurately demonstrate the property of reflection? Answer |
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| 153. |
| As waves pass from Medium A into
Medium B, all points on any one wave front must be Answer
A. in
phase
C. traveling in the same medium
B. traveling with the same
speed D. parallel |
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| 154. |
| Use the diagram to the right to
compare Medium A and Medium B Answer
A. Medium A has the higher speed of wave and index of
refraction
B. Medium A has the higher speed of wave and lower index of
refraction.
C. Medium A has the lower speed and index of refraction.
D. Medium A has the lower speed and higher index of
refraction. |
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| 155. |
Which property of light is
demonstrated by the diagram to the right?
Answer
A.
Refraction
C. Dispersion
B.
Reflection
D. Diffraction |
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| 156. |
| As the light travels from Air into
Water, the light bends Answer
A. away from normal because water has a lower index
refraction.
B. toward normal because water has a lower index of
refraction.
C. toward normal because water has a higher index of
refraction.
D. away from normal because water has a higher index
refraction. |
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| 157. |
Light is refracted
as it travels from a liquid into air until the angle of incidence reaches
51o. At this point it is internally reflected. What
is the index of refraction of the liquid? Answer
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A. |
0.777 |
C. |
1.23 |
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B. |
0.810 |
D. |
1.29 |
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| 158. |
A ray of light hits
a plane mirror with an angle of incidence of 24o. What is
the angle between the incident and reflected ray? Answer
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A. |
24o |
C. |
66o |
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B. |
48o |
D. |
132o |
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| 159. |
A highway patrolman
sitting in his car measures the speed of a car on the highway using
radar. It uses the difference in the frequency between the incident
and reflected radar waves. This illustrates Answer
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A. |
diffraction |
C. |
Doppler effect |
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B. |
critical angle |
D. |
dispersion |
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| 160. |
A wave generator
slowly has the frequency increased and a beaker on the other side of the
room starts vibrating and then shatters. Which of the following
explains this phenomenon? Answer
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A. |
The amplitude of the
wave increases before it reaches the beaker. |
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B. |
The wave generator
and the beaker are separated by exactly 1000. wavelengths. |
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C. |
The frequency of the
wave and the natural frequency of the beaker are the same. |
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D. |
The shape of the lab
room concentrated all the sound at the location of the beaker. |
