NEET Physics Thermal Expansion MCQ Question
Which of the following statements about thermal expansion is correct?
Linear expansion occurs when a substance expands in one dimension due to temperature increase.
Volume expansion is independent of temperature changes in solids.
Copper has a lower coefficient of linear expansion than glass.
All materials expand the same amount for a given temperature increase.
Correct Answer
Detailed Explanation
Statement A is correct as linear expansion refers specifically to the expansion in one dimension, which occurs due to an increase in temperature. Statement B is incorrect as volume expansion does depend on temperature changes in solids. Statement C is wrong since copper expands more than glass. Statement D is also incorrect because different materials have different expansion rates.
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