Three sound waves of equal amplitudes have frequencies, ( n – 1 ) , n , ( n + 1 ) . They superimpose to give…

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
  1. 1
  2. 4
  3. 3
  4. 2

Solution

Number of beats =2.

Maximum difference between the given frequencies.

Asked in: NEET 2016 (Phase 2)

Practice more Waves and Sound questions on Aicharya