Question

Select the correct option on the basis of graph given

• A. Young's modulus of A is greater but it is less ductile
• B. Young's modulus of A is greater but it is more ductile
• C. Young's modulus of A is less but it is less ductile
• D. Young's modulus of A is less but it is more ductile

Answer 1

The correct option is A Young's modulus of A is greater but it is less ductile

$\begin{array}{c}\text{From graph we can see that slope of A curve is greater}\\ \text{than slope of B curve.}\\ \text{Here slope}=\frac{\text{stress}}{\text{strain}}=\text{young's modulus}\\ \text{So youngs modulus of A is greater}\end{array}$

$\begin{array}{c}\text{A material will be more ductile if the length of its plastic region}\\ \text{is more.}\\ \text{So B is more ductile.}\\ \text{So young's modulus of A is greater but it is less ductile.}\end{array}$