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MHT CET202124 Sep 2021Morning ShiftPhysicsWaves and SoundActual

Two sound waves having wavelengths 5.0 ~m and 5.5 ~m propagates in a gas with velocity 300 ~m / s . The number of beats produced per second is

Options

  1. Asix
  2. Btwo
  3. Cthree
  4. Done

Correct answer

A. six

Step-by-step solution

aligned & ₁=5.0 ~m and ₂=5.5 ~m , v =300 ~m / s & n ₁= V ₁ = 300 5 =60 ~Hz & n ₂= V ₂ = 300 5.5 =54.5 ~Hz 54 ~Hz aligned Number of beats = n ₁- n ₂=60-54=6 ~Hz

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