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AP EAMCET2007PhysicsWaves and Sound

A segment of wire vibrates with a fundamental frequency of 450 ~Hz under a tension of 9 ~kg wt . Then tension at which the fundamental frequency of the same wire becomes 900 ~Hz is

Options

  1. A36 ~kg - wt
  2. B27 ~kg - wt
  3. C18 ~kg - wt
  4. D72 ~kg - wt

Correct answer

A. 36 ~kg - wt

Step-by-step solution

Fundamental frequency of wire array rlrl f & = 1 2 T m or & f & T or & f₂ f₁ & = T₂ T₁ or & 900 450 & = T₂ 9 or & T₂ & =4 9=36 ~kg - wt array

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