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A sinusoidal wave y(1) = a sin ( omega t...

A sinusoidal wave `y_(1) = a sin ( omega t - kx) ` is reflected from a rigid support and superpose with the incident wave `y_(1)` . Assume the rigid support to be at `x = 0`.

A

Stationary waves are obtained with antinodes at the rigid support.

B

Stationary waves are obtained with nodes at the rigid support.

C

Stationary waves are obtained with intensity varying periodically with distance.

D

Stationary waves are obtained with intensity varying periodically with time.

Text Solution

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The correct Answer is:
B, C
On reflection from a rigid support the reflected wave suffers an additional phase change of `pi` . When this reflected wave superimpose with incident wave stationary waves are obtained with node at the rigid support and intensity of such stationary waves vary periodically with distance.
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