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When a longitudinal wave is incident on ...

When a longitudinal wave is incident on a rigid wall.

A

compression is reflected as rarefaction with phase change of `0^(@)`

B

compression is reflected as rarefaction with phase change of `180^(@)`

C

compression is reflected as compression with no phase change

D

compression is reflected as compression with phase change of `180^(@)`

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The correct Answer is:
D
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