A stationary observer receives sound from two identical tuning forks, one of which approaches and

APG Ki Duniya

A stationary observer receives sound from two identical tuning forks, one of which approaches and the other one recedes with the same speed (much less than the speed of sound). The observer hears 2 beats/sec. The oscillation frequency of each tuning fork is v0​=1400Hz and the velocity of sound in air is 350m/s. The speed of each tuning fork is close to : 1/8,1/2, 1, ¼ m/s

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