Physics-
General
Easy

Question

The strain-stress curves of three wires of different materials are shown in the figure. P comma QandR are the elastic limits of the wires. The figure shows that

  1. Elasticity of wire P is maximum    
  2. Elasticity of wire Q is maximum    
  3. Tensile strength of R is maximum    
  4. None of the above is true    

The correct answer is: None of the above is true


    As stress is shown on x-axis and strain on y-axis
    So we can say that Y equals cot invisible function application theta equals fraction numerator 1 over denominator tan invisible function application theta end fraction equals fraction numerator 1 over denominator s l o p e end fraction
    So elasticity of wire P is minimum and of wire R is maximum

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