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The velocity of propagtion of sound is 3...

The velocity of propagtion of sound is `330 ms^-1`, in ait. If the third harmonic of the fundamental that can be exerted in an open ended tube 450 Hz, the length of the tube is

A

3.3m

B

1.1m

C

2.2m

D

4.5m

Text Solution

Verified by Experts

The correct Answer is:
B
Fundamental frequency of third harmonic in open pipe `n=(3V)/(2l)`
`V=330ms^-1,n=450"Hz"`
`450=(3xx330)/(2l)`
`l=(3xx300)/(2xx450)`
`:. l=1.1m`
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