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JEE Main202430 Jan 2024Morning ShiftPhysicsMechanical Properties of SolidsActual

Young's modules of material of a wire of length L and cross-sectional area A is Y . If the length of the wire is doubled and cross-sectional area is halved then Young's modules will be:

Options

  1. AY 4
  2. B4 Y
  3. CY
  4. D2 Y

Correct answer

C. Y

Step-by-step solution

Young’s modulus depends on the material not length and cross-sectional area. So Young’s modulus will remain same irrespective of the dimension of the wire.

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