72.Three sound waves of equal amplitudes have frequencies (n-1), n, (n – InterviewSolution

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1.	72.Three sound waves of equal amplitudes have frequencies (n-1), n, (n+1). They superimpose to give beats. The number of beats produced per second will be (I) 1 (II) 4 (III) 3 (IV) 2
Answer» 72.Three sound waves of equal amplitudes have frequencies (n-1), n, (n+1). They superimpose to give beats. The number of beats produced per second will be (I) 1 (II) 4 (III) 3 (IV) 2

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