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Two sources A and B are sounding notes of frequency 680 Hz. A listener moves from A to B with a constant velocity u. If the speed of sound is 340 m/s, What must be the value of u so that he hears 10 beats per second?

A

2 m/s

B

1.5 m/s

C

2.5 m/s

D

4 m/s

Text Solution

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The correct Answer is:
A
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