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In the fundamental mode , time taken by ...

In the fundamental mode , time taken by the wave to reach the closed end of the air filled pipe is 0.01 s . The fundamental frequency is

A

25

B

12.5

C

20

D

15

Text Solution

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The correct Answer is:
A
In the fundamental mode,
Frequency , `n = (v)/(lambda)`
`n = (v)/(4l)`
`n = (l)/(t xx 4l) " " [ because v = (l)/(t)]`
`n = (1)/(0.01 xx 4)`
`n = 25`
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