NEET Physics Stress & Strain MCQ Question
Which of the following combinations about stress and strain in solids are correct?
Stress is defined as the restoring force per unit area; strain is the ratio of change in length to the original length.
Stress and strain are always directly proportional regardless of the material properties.
Young's modulus relates stress to strain for elastic materials only within their elastic limit.
Stress is the same for all materials under the same applied force regardless of their geometry.
Correct Answer
Detailed Explanation
Statement A reflects the definition of stress and strain as outlined in the NCERT context. Statement C correctly identifies that Young's modulus applies within the elastic limit, while statements B and D misrepresent the relationship and behavior of materials under stress.
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