The stress-strain graphs for two materials are shown in figure. (Assume same scale).

Options

A. Material (ii) is more elastic than material (i) and hence material (ii) is more brittle.
B. Material (i) and (ii) have the same elasticity and the same brittleness.
C. Material (ii) is elastic over a larger region of strain as compared to (i).
D. Material (ii) is more brittle thn material (i).

Answer

C, D

Explanation

From graphs it can be seen that material (ii) is over a large region of strain as compared to (i). Material (ii) is more brittle than material (i) so the material (ii) is elastic over a larger region of strain as compared to (i). As the fracture point of material (ii) is nearer than (i), hence the material (ii) is more brittle than material (i).