Physics-Newton's Law of Cooling

NEET Physics Newton's Law of Cooling MCQ Question

Type: MCQ-diagram based-Hard-Class 11

Consider a graph that depicts the cooling curve of a hot body plotted with the temperature difference (ΔT = T2 - T1) on the y-axis and time on the x-axis. Which of the following statements correctly describes the initial part of the curve?

Question diagram
A

The rate of cooling is highest at the beginning.

B

The rate of cooling is constant throughout.

C

The rate of cooling decreases as time progresses.

D

The rate of cooling is the lowest at the beginning.

Correct Answer

Option A

Detailed Explanation

According to the NCERT context, the initial rate of cooling is higher when the temperature difference is larger, and it decreases as the temperature of the body falls.

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