1.

Two vibrating tuning forks produce progressive waves given by y_(1)= 4 sin 500 pi t and y_(2)= 2 sin 506 pi t. Number of beats produced per minute is

Answer»

3 beats/s with intensity RATIO between maxima and MINIMA equal to 2
3 beats/s with intensity ratio between maxima and minima equal to 9
6 beats/s with intensity ratio between maxima and minima equal to 2
6 beats/s with intensity ratio between maxima and minima equal to 9

Answer :B


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