According to Newton's law of cooling, the rate of cooling of a body is proportional to (Δθ)n , where Δθ is the difference of the temperature of the body and the surroundings, and n is equal to
(a) two 

(b) three 

(c) four 

(d) one.

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1 Answers

(d)  According to Newton's law of cooling, rate of cooling is proportional to Δθ
Therefore,  (Δθ)n = (Δθ) or n = 1.

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