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Manipal MET2010PhysicsWaves and Sound

Fundamental frequency of an open pipe is f_o , Fundamental frequency when it is half filled with water is

Options

  1. Af_o
  2. Bf_o / 2
  3. C2 f₀
  4. D3 f₀

Correct answer

A. f_o

Step-by-step solution

If an open pipe is half submerged in water, it will become a closed organ pipe of length half that of open pipe as shown in figure. So, its frequency will become, f_c= v 4 ( L 2 ) = v 2 L =f_o i e , equal to that of open pipe ie, frequency will remain unchanged.

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