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MHT CET Physics question

PhysicsThermal Properties of MatterMHT CET

A sphere and a cube of equal volumes both are made of iron and have similar surface. If both are heated to the same temperature and allowed to cool in identical surrounding, at a lower temperature, then the ratio of the initial rates of loss of heat is

Answer: (A)

Solution

Rate of heat loss is proportional to surface area; for equal volume, $: = (36π:6 =

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Question ID VK-063123