Elastic Behaviour, Stress & Strain
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): The property of body, by virtue of which it tends to regain its original shape when the external force is removed, is Elasticity.
Reason (R): The restoring force depends upon the bonded inter atomic and inter molecular force of solid.
In the light of the above statements, choose the correct answer from the options given below:
Show answer and solution
Answer: (c)
- (A) is the definition of elasticity: a body tends to regain its shape when the deforming force is removed. True.
- (R) The restoring force comes from interatomic and intermolecular bonds in the solid. True.
- These bond forces are exactly what make the body regain its shape, so (R) explains (A).
- So the answer is (c).