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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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