The strain-stress curves of three wires of different materials ar shown in the figure P,Q and R are the elastic limits of the wires. The figure shows that :

Options

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

Answer

C

Explanation

Slope `=tantheta=("Strain")/("Stress")=1/E`
`=tantheta=("Strain")/("Stress")=1/E`
`E_(p)ltE_(Q)ltE_(R)`