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In a medium sound travels 2 km in 3 sec ...

In a medium sound travels 2 km in 3 sec and in air, it travel 3 km in 10 sec . The ratio of the wavelengths of sound in the two media is

A

`1 : 8`

B

`1 : 18`

C

`8 : 1`

D

`20 : 9`

Text Solution

Verified by Experts

The correct Answer is:
D
`(V_(a))/(V_(m)) = (3//10)/(2//3) = (9)/(20) = (lamda_(a))/(lamda_(m)) :. (lamda_(m))/(lamda_(a)) = (20)/(9)`
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