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MHT CET202123 Sep 2021Evening ShiftPhysicsWaves and SoundActual

Two waves Y₁=0.25 316 t and Y ₂=0.25 310 t are propagating in same direction. The number of beats produced per second are

Options

  1. A3
  2. B3
  3. C2
  4. D2

Correct answer

A. 3

Step-by-step solution

aligned & y ₁=0.25 316 t , y ₂=0.25 310 t & 2 f ₁=316 and 2 f ₂=310 & f ₁= 316 2 = 158 & f ₂= 310 2 = 155 & Beat frequency = f ₁- f ₂ & = 158 - 155 = 3 aligned

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