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An open pipe of sufficient length is dip...

An open pipe of sufficient length is dipping in water with a speed v vertically. If at any instant l is lengths of tube avoce water. Then the rate at which fundamental frequency of pipe changes , is ( speed of sound = c)

A

`cv//2l^(2)`

B

`cv//4l^(2)`

C

`c//2 v^(2)l^(2)`

D

`c//4] v^(2)l^(2)`

Text Solution

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The correct Answer is:
B
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