Three sound waves of equal amplitudes have frequencies \[(v-1),\text{ – McqOptions

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1.	Three sound waves of equal amplitudes have frequencies \[(v-1),\text{ }v,\text{ }(v+1).\] They superpose to give beats. The number of beats produced per second will be:
A.	3
B.	2
C.	1
D.	4
Answer» C. 1

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