Sound WavesHard

Question

Frequency of tuning fork A is 256 Hz. It produces 4 beats/second with tuning fork B. When wax is applied at tuning fork B then 6 beats / second are heard. Frequency of B is : -

Options

A.250 Hz
B.260 Hz
C.252 Hz
D.(A) & (C) both may possible

Solution

If fB > fA ; fB = 260 Hz ; If fB < fA ; fB = 252 Hz

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