Question

The frequency of a tuning fork is 256 Hz. When it is
sounded with another tuning fork, 3 beats per second
are heard. When the second tuning fork is loaded with
a small quantity of wax and sounded again with the
first tuning fork, again 3 beats per second are heard.
What is the frequency of the second tuning fork?​

Answer 1

Frequency = 0.4

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