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MHT CET202014 Oct 2020Morning ShiftPhysicsMechanical Properties of SolidsActual

Two wires of same length and material are stretched by same force. If their masses are in the ratio 3: 4 , then the ratio of their elongations is

Options

  1. A4 3
  2. B5 3
  3. C1 3
  4. D2 3

Correct answer

A. 4 3

Step-by-step solution

When Two wires have the same material and length, but their masses are in the ratio of 4: 3 . If they are stretched by the same force, their elongation will be in the ratio of 3: 4 .This depends on the stress and strain concept. We know that m 1 / m 2= a 1 / a 2=4 / 3 and length is directly proportional to area so the answer will be 3 / 4=3: 4

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