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An open pipe is in resonance in 2nd harm...

An open pipe is in resonance in `2nd` harmonic with frequency `f_(1)`. Now one end of the tube is closed and frequency is increased to `f_(2)` such that the resonance again ocuurs in `nth` harmonic. Choose the correct option

A

`n = 3, f_(2) = (3)/(-4)f_(1)`

B

`n = 3, f_(2) = (5)/(4)f_(1)`

C

`n = 5, f_(2) = (5)/(4)f_(1)`

D

`n = 5, f_(2) = (3)/(4)f_(1)`

Text Solution

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The correct Answer is:
C
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