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MHT CET202120 Sep 2021Morning ShiftPhysicsWaves and SoundActual

Two consecutive harmonics of an air column in pipe closed at one end are of frequencies 150 ~Hz and 250 ~Hz . The fundament frequency of an air column is

Options

  1. A25 ~Hz
  2. B75 ~Hz
  3. C100 ~Hz
  4. D50 ~Hz

Correct answer

D. 50 ~Hz

Step-by-step solution

In a pipe closed at one end only odd harmonics of the fundamental are produced, i.e., 50 ~Hz , 150 ~Hz , 250 ~Hz . Hence fundamental frequency is 50 ~Hz

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