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A tuning fork of frequency 512 Hz makes ...

A tuning fork of frequency 512 Hz makes 4 beats//s with the vibrating string of a piano. The beat frequency decreases to 2 beats//s when the tension in the piano string is slightly increased.The frequency of the piano string before increasing the tension was

A

510 Hz

B

514 Hz

C

516 Hz

D

508 Hz

Text Solution

Verified by Experts

The correct Answer is:
D
The frequency of the piano string may be 508 or 516 Hz.
As,Frequency `propsqrt("Tension ")`so answer will be 508 Hz.
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