Question

The ability of a material to return to its original state when an external force is removed is called __________

(a) Plasticity

(b) Elasticity

(c) Pseudo-elasticity

(d) Resilience

I got this question in an international level competition.

Query is from Elasticity, Relaxation Processes and Spring Dashpot Models topic in section Plastic Deformation and Creep in Crystalline Materials, Elastic, Anelastic and Viscoelastic Behaviour of Engineering Material & Metallurgy

Answer 1

Correct option is (b) Elasticity

To explain: When force is applied, materials undergo deformation. The ability of a material to resist this deformation by regaining its original state upon removal of the force is called elasticity. Plasticity is considered as the converse of elasticity.