Physics-Stress & Strain
NEET Physics Stress & Strain MCQ Question
Type: MCQ-conceptual-Easy-Class 11
Which of the following statements about stress and strain is correct?
A
Stress is defined as the restoring force per unit area, and strain is the fractional change in dimension.
B
All materials obey Hooke's law for all ranges of stress and strain.
C
Bulk modulus is applicable only to solids and describes changes in shape under uniform stress.
D
Young's modulus is the same for all materials regardless of their properties.
Correct Answer
Option A
Detailed Explanation
Stress is defined as the restoring force per unit area, while strain measures the fractional change in dimension. Hooke's law is only valid within certain limits and does not apply universally to all materials.
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