Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-conceptual-Hard-Class 11
Which of the following statements about stress and deformation in materials is correct?
A
Stress is defined as the restoring force per unit area acting within a material.
B
Deformation in materials is always visually noticeable regardless of the applied force.
C
The magnitude of stress is independent of the area over which the force is applied.
D
Stress only occurs when a body is in motion and not in static equilibrium.
Correct Answer
Option A
Detailed Explanation
Stress is defined as the restoring force per unit area (F/A) within a material, as stated in the NCERT context. The other statements are incorrect as they misrepresent the conditions of deformation and stress.
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