1.

Two tuning forks have frequencies 380 and 384 Hz respectively. When they are sounded together, they produce 4 beats. After hearing the maximum sound, how long will it take to hear the minimum sound        [MP PMT/PET 1998]

A.   \[\frac{1}{2}\]sec      
B.   \[\frac{1}{4}\]sec
C.   \[\frac{1}{8}\]sec      
D.   \[\frac{1}{16}\]sec
Answer» D.   \[\frac{1}{16}\]sec


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