CP2 Test 1 Questions With Correct Answers
If the index of refraction of a material is 1.5, this means that light travels -
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CORRECT ANSWER✔✔-1.5 times as fast in vacuum as it does in the material
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If the index of refraction of a material is 3, this means that light travels - CORRECT
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|ANSWER✔✔-3 times as fast in vacuum as it does in the material
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When light travels from air into plastic - CORRECT ANSWER✔✔-its velocity and
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wavelength change, but its frequency does not change
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When light travels from air into diamond, - CORRECT ANSWER✔✔-
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When light travels from air into quartz, - CORRECT ANSWER✔✔-its velocity and
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wavelength change, but its frequency does not change
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Two beams of coherent light start out at the same point in phase and travel
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different paths to arrive at point P. If the maximum constructive interference is to
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occur at point P, the two beams must travel paths that differ by - CORRECT
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ANSWER✔✔-a whole number of wavelengths | | | |
Two beams of coherent light start out at the same point in phase and travel
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different paths to arrive at point P. If the maximum destructive interference is to
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occur at point P, the two beams must travel paths that differ by - CORRECT
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ANSWER✔✔-an odd number of half wavelengths | | | | |
, A single-slit diffraction pattern is formed on a distant screen. Assuming the angles
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involved are small, by what factor will the width of the central bright spot on the
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screen changes if the slit width is halved? - CORRECT ANSWER✔✔-it will double
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A single-slit diffraction pattern is formed on a distant screen. Assuming the angles
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involved are small, by what factor will the width of the central bright spot on the
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screen changes if the slit width is doubled? - CORRECT ANSWER✔✔-it be cut in
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half
When a beam of light that is traveling in air is reflected by a glass surface, there is
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- CORRECT ANSWER✔✔-a 180 degree phase change in the reflected beam
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Light reflects off the surface of a puddle of water. What phase shift does it
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undergo? - CORRECT ANSWER✔✔-180 degrees
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Light enters air from water. The angle of refraction will be - CORRECT
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ANSWER✔✔-greater than the angle of incidence | | | | |
Light enters glass from air. The angle of refraction will be - CORRECT
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ANSWER✔✔-less than the angle of incidence | | | | |
The critical angle for a beam of light passing from water into air is 48.7 degrees.
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This means that all light rays with an angle of incidence in the water that is
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greater than 48.7 will be - CORRECT ANSWER✔✔-totally reflected
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If the index of refraction of a material is 1.5, this means that light travels -
| | | | | | | | | | | | | | | |
CORRECT ANSWER✔✔-1.5 times as fast in vacuum as it does in the material
| | | | | | | | | | | |
If the index of refraction of a material is 3, this means that light travels - CORRECT
| | | | | | | | | | | | | | | |
|ANSWER✔✔-3 times as fast in vacuum as it does in the material
| | | | | | | | | | |
When light travels from air into plastic - CORRECT ANSWER✔✔-its velocity and
| | | | | | | | | | | |
wavelength change, but its frequency does not change
| | | | | | |
When light travels from air into diamond, - CORRECT ANSWER✔✔-
| | | | | | | | |
When light travels from air into quartz, - CORRECT ANSWER✔✔-its velocity and
| | | | | | | | | | | |
wavelength change, but its frequency does not change
| | | | | | |
Two beams of coherent light start out at the same point in phase and travel
| | | | | | | | | | | | | | |
different paths to arrive at point P. If the maximum constructive interference is to
| | | | | | | | | | | | | |
occur at point P, the two beams must travel paths that differ by - CORRECT
| | | | | | | | | | | | | | |
ANSWER✔✔-a whole number of wavelengths | | | |
Two beams of coherent light start out at the same point in phase and travel
| | | | | | | | | | | | | | |
different paths to arrive at point P. If the maximum destructive interference is to
| | | | | | | | | | | | | |
occur at point P, the two beams must travel paths that differ by - CORRECT
| | | | | | | | | | | | | | |
ANSWER✔✔-an odd number of half wavelengths | | | | |
, A single-slit diffraction pattern is formed on a distant screen. Assuming the angles
| | | | | | | | | | | |
involved are small, by what factor will the width of the central bright spot on the
| | | | | | | | | | | | | | | | |
screen changes if the slit width is halved? - CORRECT ANSWER✔✔-it will double
| | | | | | | | | | | |
A single-slit diffraction pattern is formed on a distant screen. Assuming the angles
| | | | | | | | | | | |
involved are small, by what factor will the width of the central bright spot on the
| | | | | | | | | | | | | | | | |
screen changes if the slit width is doubled? - CORRECT ANSWER✔✔-it be cut in
| | | | | | | | | | | | | |
half
When a beam of light that is traveling in air is reflected by a glass surface, there is
| | | | | | | | | | | | | | | | |
- CORRECT ANSWER✔✔-a 180 degree phase change in the reflected beam
| | | | | | | | | | |
Light reflects off the surface of a puddle of water. What phase shift does it
| | | | | | | | | | | | | | |
undergo? - CORRECT ANSWER✔✔-180 degrees
| | | |
Light enters air from water. The angle of refraction will be - CORRECT
| | | | | | | | | | | | |
ANSWER✔✔-greater than the angle of incidence | | | | |
Light enters glass from air. The angle of refraction will be - CORRECT
| | | | | | | | | | | | |
ANSWER✔✔-less than the angle of incidence | | | | |
The critical angle for a beam of light passing from water into air is 48.7 degrees.
| | | | | | | | | | | | | | | |
This means that all light rays with an angle of incidence in the water that is
| | | | | | | | | | | | | | | |
greater than 48.7 will be - CORRECT ANSWER✔✔-totally reflected
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