JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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Understanding +4 | -1

A sphere, a cube and a dise all of the same material, quality and volume are heated to

600^{\circ} \mathrm{C}

and left in air. Which of these will have the lowest rate of cooling?

View answer and explanation

Correct option: A

Sphere

Option A (Sphere) is correct because, for a given volume, a sphere has the smallest surface area, leading to the lowest rate of cooling by radiation.

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