A source of sound of frequency 500 Hz is...

A source of sound of frequency 500 Hz is moving towards an observer with velocity 30 m/s . The speed of sound is 330 m/s . the frequency heard by the observer will be

A

7.8 Hz

B

7.7 Hz

C

3.9 Hz

D

Zero

Text Solution

Verified by Experts

The correct Answer is:

D

Number of beats heard per second = 0
Because there is no relative motion between source and observer.

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