In a room where the temperature is ${30^0}C$, a body cools form ${61^0}C$ to ${59^0}C$ in 4 min. The time (in minutes) taken by the body to cool from ${51^0}C$ to ${49^0}C$ will be

JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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In a room where the temperature is

{30^0}C

, a body cools form

{61^0}C

{59^0}C

in 4 min. The time (in minutes) taken by the body to cool from

{51^0}C

{49^0}C

will be

View answer and explanation

Correct option: C

Option C (6) is correct because, using Newton's law of cooling, the time taken to cool from 51°C to 49°C is calculated to be 6 minutes.