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The length of pipe 4cm in diameter and o...

The length of pipe 4cm in diameter and open at both ends when it is set into vibrations by a tuning fork of frequency 288Hz. (v=332m/s)

A

85.23cm

B

75.23cm

C

65.23cm

D

55.23cm

Text Solution

Verified by Experts

The correct Answer is:
D
`v=2n(l+e)`
`l+e=(v)/(2n)=(332)/(2xx288)`
`l+e=166/288=0.576`
`l=0.576-0.3d`
`=0.576-0.3xx4xx10^(-2)`
`=0.576-0.0012`
=0.5526
=55.26cm
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