. If two tuning forks A and B are sounded together
they produce 4 beats per second. A is then slightly loaded with wax,
they produce 2 beats when sounded again. The frequency of A is 256. The frequency of B will be
From the given,
When the tuning forks A and B are sounded together, 4 beats are produced per second.
Now finding the frequency of B,
Hence, option B is correct, i.e., 252.