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JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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A solid sphere of radius R\mathrm{R} and a hollow sphere of inner radius r\mathrm{r} and outer radius R\mathrm{R} made of copper are heated to the same temperature and are allowed to cool in the same environment. Then, choose the CORRECT statement :-
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Correct option: A
Hollow sphere cools faster
Option A (Hollow sphere cools faster) is correct because the hollow sphere has a smaller mass for the same surface area, leading to a faster cooling rate.

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