Two identical tuning forks vibrating at the same frequency 220 Hz are kept fixed at some distance apart. A listener runs parallel between the forks at a speed of 3 m/s so that he approaches one tuning fork and recedes from the other. Find the beat frequency observed by the listener (speed of the sound = 330 m/s)

Two identical tuning forks vibrating at the same frequency 220 Hz are

1.	Two identical tuning forks vibrating at the same frequency 220 Hz are kept fixed at some distance apart. A listener runs parallel between the forks at a speed of 3 m/s so that he approaches one tuning fork and recedes from the other. Find the beat frequency observed by the listener (speed of the sound = 330 m/s)
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