Question

A tuning fork coated with wax is vibrating in air. What type of vibration will be produced?​

Answer 1

Explanation:

Before loaded wax, n=5 beats per sec . Given f

B

=480 Hz

so, f

A

=480+5=485 Hz or 480−5=475 Hz

On loading fork A its frequency decreases. But the beat decreases to 3 beats per sec.

So, f

A

is greater than f

B

. Thus, f

A

=485 Hz