NEET Physics Stress & Strain MCQ Question
Which of the following combinations regarding stress and strain in materials is correct?
Stress is the restoring force per unit area; strain is the fractional change in dimension.
Shear modulus describes tensile stress; Young's modulus is only applicable to compressive stress.
Hooke's law states that stress is proportional to strain in all types of materials.
Elastomers obey Hooke's law and exhibit linear stress-strain behavior.
Correct Answer
Detailed Explanation
Statement A correctly defines stress and strain as per the provided context. Statement B is incorrect because shear modulus is related to shearing stress, not tensile stress. Statement C is false as Hooke's law applies to many but not all materials (like elastomers). Statement D is incorrect because elastomers do not obey Hooke's law.
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