Principle of Superposition of Waves and Reflection of Waves NEET Questions

Physics - Oscillations and Waves

Principle of Superposition of Waves and Reflection of Waves MCQ Questions


7.
The condition for destructive interference is:
A.
Phase difference of π/2
B.
Phase difference of 0
C.
Phase difference of π
D.
Phase difference of 2Ï€
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ANSWER :
C. Phase difference of π
8.
What happens to the speed of a wave during reflection from a rigid boundary?
A.
Becomes zero
B.
Doubles
C.
Halves
D.
Remains unchanged
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ANSWER :
D. Remains unchanged
9.
The amplitude of the resultant wave during destructive interference is:
A.
Double the amplitude of one wave
B.
Maximum
C.
Equal to the amplitude of one wave
D.
Minimum
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ANSWER :
D. Minimum
10.
In a stationary wave, the points of zero displacement are called:
A.
Nodes
B.
Antinodes
C.
Crests
D.
Troughs
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ANSWER :
A. Nodes
11.
What happens to a wave’s frequency during reflection at a boundary?
A.
Becomes zero
B.
Doubles
C.
Halves
D.
Remains unchanged
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ANSWER :
D. Remains unchanged
12.
The phase change when a wave is reflected from a denser medium is:
A.
2Ï€ radians
B.
0 radians
C.
Ï€/2 radians
D.
Ï€ radians
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ANSWER :
D. π radians