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JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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A students performs cooling experiment with a solid sphere and hollow sphere of same material and size which are heated to the same temperature. If the temperature difference between each sphere and surroundings is around 30∘C30^{\circ} \mathrm{C}, then -
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Correct option: A
The hollow sphere will cool at a faster rate
Option A is correct. The hollow sphere cools faster because it has a smaller mass for the same surface area, leading to a higher rate of cooling.

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