Discussion Forum

 In plotting stress versus strain curves for two materials  P and Q, a student by m take puts strain on the y-axis and stress on the x-axis as shown in the figure. Then, the correct statement is /are

Answer:

Explanation:

$Y=\frac{stress}{strain}$   or    $Y\propto\frac{1}{strain}$

                                                                            (for  same stress say σ)

$(strain)_{Q}<(strain)_{P}$

 $\Rightarrow$               $Y_{Q}>Y_{P}$

So, P  is more ductile tan Q, Further from the given figure we can also see that the breaking stress of P is more than Q. So it has more tensile strength