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

Options

A. elasticity of wire P is maximum
B. elasticity of wire Q is maximum
C. tensile strength of wire R is maximum
D. None of the above

Answer

c

Explanation

As stress is shown `Y = cot theta = (1)/(tan theta) = (1)/("slope")`
So, elasticity of wire P is minimum and or wire R is maximum.