PHY 102 | Study Mode

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Question 1
A
i,ii,iii 
B
ii,iii 
C
iii 
D
i,ii 
E
Explanation.
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Correct Option:
C
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Question 2
A
i,ii 
B
ii,iii 
C
i,ii,iii 
D
ii 
E
iii 
Explanation.
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Correct Option:
A
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Question 3
A
i,ii,iii 
B
C
ii,iii 
D
E
iii 
Explanation.
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Correct Option:
B
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Question 5
A
the velocity of sound in air is independent of the motion of the source 
B
the velocity of sound in air is dependent of the motion of the source 
C
the velocity of sound in air is equal to that of the motion of the source 
D
the velocity of sound in air is equal to zero 
E
none of the above 
Explanation.
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Correct Option:
E
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Question 7
A
can be diffracted 
B
can be polarized 
C
can be reflected 
D
travel faster in solid than in liquid 
E
travel in air 
Explanation.
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Correct Option:
B
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Question 8
A
gamma-rays, ultraviolet rays, radio waves. 
B
gamma-rays, visible light, ultraviolet rays. 
C
visible light, infrared radiation, microwaves 
D
microwaves, ultraviolet rays, X-rays 
E
radio-waves, visible-light, infrared radiation 
Explanation.
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Correct Option:
C
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Question 9
A
its frequency decreases and its velocity decreases 
B
its wavelength decreases and its velocity decreases 
C
its frequency increases and its velocity increases 
D
its wavelength increases and its velocity increases 
E
none of the above 
Explanation.
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Correct Option:
B
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Question 10
A
50 
B
495 
C
660 
D
727 
E
7300 
Explanation.
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Correct Option:
B
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