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Wavelength of two notes in air are 1 m a...

Wavelength of two notes in air are 1 m and `1(1)/(164)`m. Each note produces 1 beats/s with a third note of a fixed frequency. The speed of sound in air is

A

`330 m//s`

B

`340m//s`

C

`350 m//s`

D

`328 m//s`

Text Solution

Verified by Experts

The correct Answer is:
A
`lamda_1=1m, lamda_2=(165)/(164)m`
`f_1=(C )/(1)`,`f_2=(164C)/(165)`
`f-f_2=2`
`(C )/(165)=2` , `C=330 m//s`
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