Displacement Relation for a Progressive Wave NEET Questions

Physics - Oscillations and Waves

Displacement Relation for a Progressive Wave MCQ Questions


7.
For a progressive wave traveling along the x-axis, the displacement at t = 0 and x = 0 is:
A.
A
B.
Zero
C.
-A
D.
A/2
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ANSWER :
B. Zero
8.
In a progressive wave, when the displacement is zero, the phase can be:
A.
Ï€/2
B.
0, π, 2π
C.
Ï€/4
D.
3Ï€/2
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ANSWER :
B. 0, π, 2π
9.
Which of the following is a correct displacement relation for a wave moving in the positive y-direction?
A.
y = A sin(ωt + kx)
B.
y = A sin(ωt - ky)
C.
y = A cos(ωt - kx)
D.
y = A cos(ωt + ky)
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ANSWER :
B. y = A sin(ωt - ky)
10.
The phase difference between two points of a wave with a path difference of λ is:
A.
Ï€
B.
2Ï€
C.
Ï€/2
D.
3Ï€/2
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ANSWER :
B. 2Ï€
11.
The general equation of a progressive wave is given by y = A sin(ωt - kx). What does 'k' represent?
A.
Angular frequency
B.
Wave speed
C.
Wave number
D.
Amplitude
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ANSWER :
C. Wave number
12.
If a wave travels in the negative x-direction, the displacement relation is:
A.
y = A cos(ωt - kx)
B.
y = A sin(ωt - kx)
C.
y = A sin(ωt + kx)
D.
y = A cos(ωt + kx)
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ANSWER :
C. y = A sin(ωt + kx)