Given below are two statements:
Assertion (A): The property of a 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 the solid.
In the light of the above statements, choose the correct answer from the options given below:
Assertion (A): The property of a 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 the solid.
In the light of the above statements, choose the correct answer from the options given below:
- (A)(A) is false but (R) is true
- (B)(A) is true but (R) is false
- (C)Both (A) and (R) are true and (R) is the correct explanation of (A)✓ Correct
- (D)Both (A) and (R) are true but (R) is NOT the correct explanation of (A)
Answer: (C)
Solution
Elasticity is precisely the tendency of a deformed body to regain its original shape once the deforming force is removed — Assertion (A) states this definition correctly. That restoring tendency originates microscopically in the interatomic and intermolecular bonding forces within the solid, which pull displaced atoms back toward their equilibrium positions — Reason (R) correctly identifies the physical mechanism behind (A), and is the reason (A) holds.
JEE Main · 2024 · 27 Jan 2024 · Shift 2 · Single correct option