Conceptual Physics Exam 4 Questions
With Correct Answers
The fanning out of waves upon passing through an opening is more
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pronounced through |
a small openings
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b large openings
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c same for each
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d none of the above - CORRECT ANSWER✔✔-a. small openings
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Diffraction from a foghorn is the best if the waves being diffracted are
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a long
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b short
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c either of these
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d neither of these - CORRECT ANSWER✔✔-a long
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For viewing tiny objects in a microscope , diffraction is
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a helpful
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b a hindrance
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c not a factor - CORRECT ANSWER✔✔-b a hindrance
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, Newtons rings will be closer together if illuminated with
| | | | | | | |
a red light
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b blue light
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c white light
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d none of the above - CORRECT ANSWER✔✔-b blue light
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Light from two closely spaced stars cannot produce a steady
| | | | | | | | | |
interference pattern due to | | |
a incoherence
|
b the inherent instability of the atmosphere
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c their different radial distances
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d their nonpoint like nature - CORRECT ANSWER✔✔-a incoherence
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Interference colors in a soap bubble is evidence that the soap film
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a has two reflecting surfaces
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b is thin
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c both of these
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d neither of these - CORRECT ANSWER✔✔-c both of these
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Interference effects are less visible for thick films because the reflected
| | | | | | | | | | |
waves
With Correct Answers
The fanning out of waves upon passing through an opening is more
| | | | | | | | | | | |
pronounced through |
a small openings
| |
b large openings
| |
c same for each
| | |
d none of the above - CORRECT ANSWER✔✔-a. small openings
| | | | | | | | |
Diffraction from a foghorn is the best if the waves being diffracted are
| | | | | | | | | | | |
a long
|
b short
|
c either of these
| | |
d neither of these - CORRECT ANSWER✔✔-a long
| | | | | | |
For viewing tiny objects in a microscope , diffraction is
| | | | | | | | |
a helpful
| |
b a hindrance
| |
c not a factor - CORRECT ANSWER✔✔-b a hindrance
| | | | | | | |
, Newtons rings will be closer together if illuminated with
| | | | | | | |
a red light
| |
b blue light
| |
c white light
| |
d none of the above - CORRECT ANSWER✔✔-b blue light
| | | | | | | | |
Light from two closely spaced stars cannot produce a steady
| | | | | | | | | |
interference pattern due to | | |
a incoherence
|
b the inherent instability of the atmosphere
| | | | | |
c their different radial distances
| | | |
d their nonpoint like nature - CORRECT ANSWER✔✔-a incoherence
| | | | | | | |
Interference colors in a soap bubble is evidence that the soap film
| | | | | | | | | | |
a has two reflecting surfaces
| | | |
b is thin
| |
c both of these
| | |
d neither of these - CORRECT ANSWER✔✔-c both of these
| | | | | | | | |
Interference effects are less visible for thick films because the reflected
| | | | | | | | | | |
waves
