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A closed organ pipe and an open organ pi...

A closed organ pipe and an open organ pipe of same length produce `4` beats when they are set into vibrations simultaneously. If the length of each of them were twice their initial lengths, the number of beats produced will be

A

`2`

B

`4`

C

`1`

D

`8`

Text Solution

Verified by Experts

The correct Answer is:
A
`Deltan=n_(0)-n_(c )=(V)/(2l)-(V)/(4l)=(V)/(4l)`
`Deltan prop (1)/(l)implies(Deltan.)/(Deltan)=(l)/(l.)`
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