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A cylindrical tube open at both ends, ha...

A cylindrical tube open at both ends, has a fundamental frequency `f` in air. The tube is dipped vertically in air. The tube is dipped vertically in water so that half of it is in water. The fundamental frequency of the air column is now

A

`v//2`

B

`v`

C

`3 v//4`

D

` 2 v`

Text Solution

Verified by Experts

The correct Answer is:
B
`f_(open) = (v)/( 2l) = v`
`f_(closed) = (v)/(4 ((l)/(2))) = (v)/( 2l) = v`
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