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COMEDK2021PhysicsMechanical Properties of Solids

A wire is stretched to double of its length. The strain is

Options

  1. A1
  2. B2
  3. C3
  4. D4

Correct answer

A. 1

Step-by-step solution

Strain is defined as the ratio of the change in length to the original length of the wire. Let the original length of the wire be L . The wire is stretched to double its length, so the new length L' = 2L . The change in length L = L' - L = 2L - L = L . Strain = L L = L L = 1 . Answer: 1

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