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AP EAMCET202315 May 2023Evening ShiftPhysicsWaves and SoundActual

A string of length ' L ' is stretched by L 20 and the speed of transverse waves along it is ' v '. The speed of wave when it is stretched by L 10 will be (assume that Hooke's law is applicable)

Options

  1. A2 v
  2. Bv 2
  3. Cv 2
  4. D4 v

Correct answer

C. v 2

Step-by-step solution

aligned & v T & T l & v l aligned aligned & v ₂ v ₁ = l ₂ l ₁ = L 10 ~L & v ₂=v 2 aligned

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