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NEETPhysicsMechanical Properties of Solids

The diagram shows stress versus strain curve for the materials (A ) and (B ). From the curves, we can infer that

Options

  1. A(A ) is brittle but (B ) is ductile
  2. B(A ) is ductile but (B ) is brittle
  3. CBoth (A ) and (B ) are ductile
  4. DBoth (A ) and (B ) are brittle

Correct answer

B. (A ) is ductile but (B ) is brittle

Step-by-step solution

According to stress-strain curve, we see that for same value of applied stress, strain produced is more in material (B ) than in material (A ) in linear region. Therefore, (A ) is ductile but (B ) is brittle. In ductile materials, yield point exists whereas in brittle material failure occurs without yielding. (A ) has yield point hence it is ductile. (B ) doesn't have yield point hence (B ) is brittle.

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