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A cylindrical tube, open at the both end...

A cylindrical tube, open at the both ends, has a fundamental frequency f 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

`3n`

B

`2n//3`

C

`n//3`

D

`n`

Text Solution

Verified by Experts

The correct Answer is:
B

`n_(1)=(V)/(2l_(1))` and `n_(2)=(V)/(4l_(2))implies(n_(2))/(n_(1))=(V//4l_(2))/(V//2l_(1))`
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