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

Answer 1

Correct Answer - D
(d) As stress is shown on X-axis and strain on Y-axis.
So, we can say that `Y="cot"theta=(1)/("tan"theta)=(1)/("slope")`
So, elasticity of wire P is minimum and of wire R is maximum.