Which of the following statements is correct
Correct answer: A. Hooke's law is applicable only within the elastic limit
- A. Hooke's law is applicable only within the elastic limit
- B. The adiabatic and isothermal elastic constants of a gas are equal
- C. Young's modulus is dimensionless
- D. Can't be predicted
Explanation
Option A is correct because Hooke's law is valid only within the elastic limit of a material, meaning the material will return to its original shape once the force is removed. Option B is incorrect because adiabatic and isothermal elastic constants differ due to different conditions of heat exchange. Option C is incorrect because Young's modulus is a measure of stiffness and has units of pressure (N/m²). Option D is incorrect as these properties can indeed be predicted based on physical principles.
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About Physics of Solids
Solids are compared through crystal structure, amorphous arrangement, elasticity, plastic deformation, stress, strain and Young’s modulus. Electrical behavior depends on available charge carriers and band structure, so conductors, insulators and semiconductors must be distinguished from mechanical properties such as strength, stiffness and brittleness.
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