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The velocity of source of sound when the...

The velocity of source of sound when the frequency appears to be double the actual frequency of stationary observer will be

A

`v_(s) = v`

B

`v_(s) = v//2`

C

`v_(s) = 2v`

D

`v_(s) = 1.5v`

Text Solution

Verified by Experts

The correct Answer is:
B
`n' = n [(v)/(v - v_(s))]`
`2n = n [(v)/(v - v_(s))]`
`2 = (v)/(v -v_(s))`
`v - v_(s) = (v)/(2)`
`v - (v)/(2) = v_(s)`
`v_(s) = (v)/(2)`
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