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Two waves of wavelength 50 cm and 51 cm ...

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

A

340 m/s

B

331 m/s

C

306 m/s

D

360 m/s

Text Solution

Verified by Experts

The correct Answer is:
B
Number of beats produced per second
`upsilon_(1)-upsilon_(2)=(v)/(lambda_(1))-(v)/(lambda_(2))`
`therefore 12=v[(1)/(50)-(1)/(51)]or12=(vxx1)/(50xx51)`
or `v=12xx50xx51cm//s=30600cm//s=306m//s`
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