MHT CET Physics question

When two harmonic sound waves of close (but not equal) frequencies are heard at the same time, we hear

(A)a sound of similar frequency
(B)a sound of frequency which is the average of two close frequencies
(C)audibly distinct waxing and waning of the intensity of the sound with a frequency equal to the difference in the two close frequencies
(D)All of the aboveCorrect

Answer: (D)

Solution

The superposition is a tone of frequency equal to the average frequency, of similar pitch to each component, whose

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Question ID VK-070309