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An open pipe of length 33 cm resonates w...

An open pipe of length 33 cm resonates with frequency of 100 Hz . If the speed of sound is 330 m/s , then this frequency is

A

fourth

B

third

C

second

D

first

Text Solution

Verified by Experts

The correct Answer is:
C
The frequency of the open pipe
`f = n * V/(2L) :. 1100 = (n xx 330 xx 100)/(2 xx 30) `
` 33n = 66`
` :. n = 2` (second harmonic)
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