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KCET2013PhysicsWaves and Sound

The frequency of the second overtone of the open pipe is equal to the frequency of the first overtone of the closed pipe. The ratio of the lengths of the open pipe and the closed pipe is

Options

  1. A2: 1
  2. B1: 2
  3. C1: 3
  4. D3: 1

Correct answer

A. 2: 1

Step-by-step solution

The frequency of first overtone for closed pipe, f_ c = 3 v 4 I_ c Given, i.e., aligned f_ c &=f₀ 3 v 4 I_ c &= 3 v 2 I_ o I_ o I_ c = 2 1 aligned

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