$A$ stress-strain graph for a metal is shown. The part in which Hooke's law holds good is

Plot a stress $\to$ strain curve for a metal and explain.

In the given stress-strain graph,what does point $D$ indicate?

The diagram shows the stress versus strain curve for materials $A$ and $B$. From the curves,we can infer that

The stress vs. strain curve for the elastic tissue of the aorta,the large tube (vessel) carrying blood from the heart,will be: [Note: Stress is proportional to the square of the strain for the elastic tissue of the aorta.]

The strain-stress plot for materials $A$,$B$,$C$ and $D$ is shown in the figure. Which material has the largest Young's modulus?