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When a source of frequency n is receding...

When a source of frequency n is receding away from a stationary observer with velocity v, then the apparent change in frequency due to Doppler’s effect is found to be `Delta n_(1)` and when the observer is reducing from a stationary source with the same velocity v, then the apparent change in frequency is `Delta n_(2)` , then -

A

`Delta_(1) = Delta_(2) = 0 `

B

`Deltan_(1) = Deltan_(2) ne 0`

C

`Delta n_(1) gt Deltan_(2)`

D

`Deltan_(1) lt Deltan_(2)`

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The correct Answer is:
d
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