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An open pipe of length l vibrates in fun...

An open pipe of length `l` vibrates in fundamental mode. The pressure variation is maximum at

A

`1//4` from ends

B

the middle of pipe

C

the ends of pipe

D

at `1//8` from ends of pipe

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The correct Answer is:
A
pressure variation is max at nodes i.e., at `1//2` of length
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