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MHT CET2018PhysicsMechanical Properties of Solids

The decrease in length of a metal bar of length ' L ' and crosssectional area ' A ' when compressed with a load ' F ' along its length is ( Y = Young's modulus of the material of metal bar)

Options

  1. AF L 2 A Y
  2. BF 2 L 2 A Y
  3. CF L A Y
  4. DF 2 L 2 2 A Y

Correct answer

C. F L A Y

Step-by-step solution

Y = F L A Δ L Δ L = F L A Y

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