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MHT CET202120 Sep 2021Morning ShiftPhysicsWaves and SoundActual

Beats are produced by waves y ₁= a 2000 t and y ₂= a 2008 t . The number of beats heard per second is

Options

  1. A4
  2. B1
  3. Czero
  4. D8

Correct answer

A. 4

Step-by-step solution

array ll 2 n ₁=2000 & n ₁=1000 ~Hz 2 n ₂=2008 & n ₂=1004 ~Hz Beat frequency = n ₂- n =4 ~Hz array

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