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A listener is at rest with respect to th...

A listener is at rest with respect to the source of sound. A wind starts blowing along the line joining the source and the observer. Which of the following quantities do not change?
(i) Frequency
(ii) Velocity of sound
(iii) Wavelength
(iv) Time period

A

`(i), (iv)`

B

`(iv), (ii)`

C

`(iii), (iv)`

D

`(ii), (iv)`

Text Solution

Verified by Experts

The correct Answer is:
A
`f' = f ((v+w-v_(0))/(v+w-v_(s))), v_(0) = v_(s) = 0`
`f' = f, T' = T`
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