Question

Two sound waves of same amplitudes
produce a beat frequency
of 10 Hz. If the amplitudes of the each wave
are halved, what is the
beat frequency of the waves?
(A) 10 Hz
(B) 5 Hz
(C) 20 Hz
(D) zero​

Answer 1

Answer:

B.5Hz

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Answer 2

Answer:

Option A : 10 Hz

Explanation:

Beat frequency is defined as difference in frequency of the two sound that undergo interference to produce the beats.

If the beat frequency is 10Hz, it means the relative difference between two sound waves in 10. It does not depend on the amplitude, if the amplitude is changed, the beat frequency will remain the same provided the frequencies of both waves remain constant