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MHT CET20192 May 2019Morning ShiftPhysicsWaves and SoundActual

In fundamental mode, the time required for the sound wave to reach up to the closed end of a pipe filled with air is ‘ t ’ second. The frequency of vibration of air column is

Options

  1. A2 t - 1
  2. B4 t - 1
  3. C2 t - 1
  4. D4 t - 1

Correct answer

D. 4 t - 1

Step-by-step solution

∵ f 0 = v 4 l f 0 = 1 4 l D i s t a n c e t i m e f 0 = 1 4 l l t f 0 = 1 4 t

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