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JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER
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Assertion (A): A tightly closed metal lid of a glass bottle can be opened more easily if it is put in hot water for some time.
Reason (R): The coefficient of expansion of metal lid is greater than that of glass.
Reason (R): The coefficient of expansion of metal lid is greater than that of glass.
View answer and explanation
Correct option: A
If both (A) and (R) are true and (R) is the correct explanation of (A).
The correct answer is A because the metal lid expands more than the glass due to a higher coefficient of expansion, making it easier to open when heated.
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