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MHT CET2009PhysicsWaves and Sound

Beats are produced by two waves given by y₁=a 2000 t and y₂=a 2008 t . The number of beats heard per second is

Options

  1. Azero
  2. Bone
  3. Cfour
  4. Deight

Correct answer

C. four

Step-by-step solution

Number of beats per second =n₁ n₂ ₁=2000 =2 n₁ array lc & n₁=1000 and & ₂=2008 =2 n₂ & n₂=1004 array Number of beats heard per second =1004-1000=4

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