A sphere, a cube and a thin circular plate, all made of the same ma...

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A sphere, a cube and a thin circular plate, all made of the same material and having the same mass are initially heated
\( \mathrm{P} \) to a temperature of \( 1000^{\circ} \mathrm{C} \). Which one of these will cool first
[J \& K CET 2000; MH CET 2000; UPSEAT 2001]
W
(a) Plate
(b) Sphere
(c) Cube
(d) None of these
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