JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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Application +4 | -1

A body at

{50^0}C

cools in a surroundings maintained at

{30^0}C

the temperature at which the rate of cooling is half that of the beginning is

View answer and explanation

Correct option: C

{40^0}C

Option C (

{40^0}C

) is correct because it is derived from Newton's law of cooling, where the rate of cooling is proportional to the temperature difference.

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n = \frac{{PV}}{{RT}},n =

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\left( {\frac{T}{2}} \right)K