Question 480: Waves

Question

Three sound waves  of equal amplitudes have frequencies (n $$-$$ 1), n, (n + 1). They superimpose to give beats. The number of beats produced per second  will be

Accepted Answer

(n Ã¢ÂÂ 1) and (n + 1) suppose to form frequency n
n and n will be at resonance
n Ã¢ÂÂ 1 and n produce 1 beat
n + 1 and n produce 1 beat
$$ 	herefore $$ Number of beats formed are Ã¢ÂÂ2Ã¢ÂÂ

Answer

1

Answer

4

Answer

3

Answer

2

Waves

Three sound waves of equal amplitudes have frequencies (n $-$ 1), n, (n + 1). They superimpose to give beats. The number of beats produced per second will be

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