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A tuning fork of frequency 480 Hz produc...

A tuning fork of frequency 480 Hz produces 10 beats per second when sounded with a vibrating sonometer string. What must have been the frequency of the string if a slight increase in tension produces lesser beats per second than before

A

490 Hz

B

470 Hz

C

460 Hz

D

480 Hz

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The correct Answer is:
B
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