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MHT CET Physics question

PhysicsThermal Properties of MatterMHT CET

A solid cube and a solid sphere are made of the same material and both have the same volume. If both are at the temperature of 400 K then initial rate of cooling is :

Answer: (A)

Solution

For equal volume (mass) the sphere has the smallest surface area, so the cube with the larger area radiates more and

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Question ID VK-062845