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A pipe of length 2cm is open at both the...

A pipe of length 2cm is open at both the ends which harmonic mode of the pipe is resonantly excited by a source of frequency 425Hz ? (Speed of sound v= 340m/s)

A

First harmonic

B

Second harmonic

C

Third harmonic

D

Fourth harmonic

Text Solution

Verified by Experts

The correct Answer is:
B
`n=(v)/(2l) = (340)/(2xx0.20) = 850`
`n_1 = 2n = 2 xx425 = 850`
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