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Sound waves of wavelength lambda travell...

Sound waves of wavelength `lambda` travelling in a medium with a speed of `upsilon m//s` enter into another medium where its speed is `2upsilon m//s.` Wavelength of sound waves iin the second medium is

A

`lambda`

B

`(lambda)/(2)`

C

`2lambda`

D

`4lambda`

Text Solution

Verified by Experts

The correct Answer is:
C
`f_(1)=f_(2)implies(V_(1))/(lambda_(1))=(V_(2))/(lambda_(2))implieslambda_(2)=((V_(2))/(V_(1)))lambda_(1)`
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