The difference betweeen the freqencies o...

The difference betweeen the freqencies of the second and third overtones of an air column in a pipe closed at one end is 160 Hz. What is the frequency of its first overtone ?

A

100 Hz

B

150 Hz

C

240 Hz

D

400 Hz

Text Solution

Verified by Experts

The correct Answer is:

C

`7n - 5n = 2n = 160 :. n = 80`
` :. ` The frequency of the first overtone ` = 3n = 240 ` Hz

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