MHT CET Physics question

For a body slightly above the room temperature, the rate of loss of heat depends upon

(A)difference of temperature between the body and the surroundingsCorrect
(B)temperature of the body
(C)temperature of the surroundings
(D)fourth power of the temperature difference

Answer: (A)

Solution

For a small excess temperature Newton's law of cooling applies, so the rate of loss of heat is proportional to the first power of the temperature difference

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Question ID VK-063048