NEET Physics Elastic Behavior Assertion Reason Question
Assertion (A): Hooke's Law is applicable for all materials under small deformations.
Reason (R): The modulus of elasticity is the constant of proportionality between stress and strain in Hooke's Law.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
Correct Answer
Detailed Explanation
Hooke's Law is not applicable to all materials under small deformations; elastomers do not obey Hooke's Law. However, the modulus of elasticity is indeed the constant of proportionality in Hooke's Law.
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