Physics-Newton's Law of Cooling

NEET Physics Newton's Law of Cooling MCQ Question

Type: MCQ-diagram based-Easy-Class 11

Consider a graph depicting the cooling of a hot body over time, where the y-axis represents the temperature difference ΔT=T2T1\Delta T = T_2 - T_1 and the x-axis represents time tt. According to Newton's Law of Cooling, which statement best describes the initial rate of cooling?

Question diagram
A

The initial rate of cooling is higher when the temperature difference ΔT\Delta T is greater.

B

The initial rate of cooling remains constant irrespective of ΔT\Delta T.

C

The initial rate of cooling is lower when the temperature difference ΔT\Delta T is greater.

D

The initial rate of cooling depends solely on the ambient temperature.

Correct Answer

Option A

Detailed Explanation

Newton's Law of Cooling states that the rate of cooling is proportional to the temperature difference between the body and its surroundings. Initially, when ΔT\Delta T is greater, the rate of cooling is higher.

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