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Manipal MET2012PhysicsMechanical Properties of Solids

A copper wire and a steel wire of the same diameter and length are joined end to end and a force is applied which stretches their combined length by 1 cm . Then, the two wires will have

Options

  1. Athe same stress and strain
  2. Bthe same stress but different strains
  3. Cthe same strain but different stresses
  4. Ddifferent stresses and strains

Correct answer

B. the same stress but different strains

Step-by-step solution

As same force is applied to each wire having equal area of cross-section, so stress is same but extensions will be different for wires of different materials. So, same stress but different strains are there.

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