Question

Two sources P and Q produce notes of frequency 660 Hz
each. A listener moves from P to Q with a speed of 1 ms⁻¹.
If the speed of sound is 330 m/s, then the number of beats
heard by the listener per second will be [NEET Kar. 2013]
(a) zero (b) 4
(c) 8 (d) 2

Answer 1

Answer:

the first

Explanation:

b) is the correct answernn..

Answer 2

Explanation:

4 is ur answer..............

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