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Manipal MET2021PhysicsWaves and Sound

A stretched sonometer wire is in unison with a tuning fork. When length of wire is increase by 1 % , the number of beats heard per second is 5. Then the frequency of the fork is :

Options

  1. A500 Hz
  2. B505 Hz
  3. C255 Hz
  4. D250 Hz

Correct answer

B. 505 Hz

Step-by-step solution

Let frequency of tuning fork be n₁ n₂ n₁ = 100 101 As n₁-n₂=5 So, n₁=505 ~Hz

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