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A tuning fork of frequency 256 Hz produc...

A tuning fork of frequency 256 Hz produces 4 beats per second with a wire of length 25 cm vibrating in its fundamental mode. The beat frequency decreases when the length is slightly shortened. What could be the minimum length by which the wire be shortened so that it produces no beats with the tuning fork ?

A

`0.2 cm`

B

`0.4 cm`

C

`0.3 cm`

D

`0.1 cm`

Text Solution

Verified by Experts

The correct Answer is:
B
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