The stress and strain graphs for two materials, `A` and `B` are shown here. Answer the following:
give reasons

Explanation

a. Material A has greater value of Young's modulus, because slope of A is greater then that of B.
b. Material A is more ductile because ther is a large plastic defomation range between the elastic limit and the breaking point.
c. Material B ismore brittle because the plastric regiion between the elastic limit and breaking point is small.
d.Strength of a material is determined by the stress required to cause fracture. Material A is stronger than material B.