Question

The strain stress curves of three wires of different materials are shown in the figure. P, Q and R are the elastic limits of the wires. The figure shown that
A. Elasticity of wire P is maximum
B. Elasticity of wire Q is maximum
C. Tensile strength of R is maximum
D. None of the above is true.

Answer 1

Correct Answer - D
As stress is shown of x-axis and strain on y-axis
So we can say that `Y=cottheta=(1)/(tantheta)=(1)/(slope)`
so elasticity of wire P is minimum and of wire `R` is maximum.