Two waves of wavelength 50 cm and 51 cm produce 12 beat/s . The speed of sound is

Options

A. 360 m/s
B. 340 m/s
C. 331 m/s
D. 306 m/s

Explanation

`n_(1)=(v)/(lambda_(1))=(v)/(0.50)` and `n_(2)=(v)/(lambda_(2))=(v)/(0.51)`
`Deltan=n_(1)-n_(2)v[(1)/(0.50)-(1)/(0.51)]=12`
`:. V=(12 xx 0.51xx0.50)/( 0.01)= 306 m/s `