According to Newton’s law of cooling, rate of cooling of a body is proportional to {(Delta θ

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10-2.Transmission of Heat

easy

According to Newton’s law of cooling, the rate of cooling of a body is proportional to ${(\Delta \theta )^n}$, where $\Delta \theta $ is the difference of the temperature of the body and the surroundings, and n is equal to

A

$1$

B

$2$

C

$3$

D

$4$

(AIEEE-2003)

Solution

(a) According to Newton's law
Rate of cooling $\propto$ temperature difference $\Delta \theta$

Standard 11

Physics

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