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The fundamental frequency of a closed or...

The fundamental frequency of a closed organ pipe of length `20 cm` is equal to the second overtone of an organ pipe open at both the ends. The length of organ pipe open at both the ends is

A

`140cm`

B

`80cm`

C

`100cm`

D

`120cm`

Text Solution

Verified by Experts

The correct Answer is:
D
`(V)/(4L_(c ))=(3V)/(2L_(0))`
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