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Question: Answered & Verified by Expert
A body cools from a temperature 3T to 2T in 10 minutes. The room temperature is T. Assume that Newton's law of cooling is applicable. The temperature of the body at the end of next 10 minutes will be
PhysicsThermal Properties of MatterNEETNEET 2016 (Phase 2)
Options:
  • A 74T
  • B 32T
  • C 43T
  • D T
Solution:
1975 Upvotes Verified Answer
The correct answer is: 32T
T1-T2t=KT1+T22-T0

3T-2T10=K2.5T-T

T10=K1.5T

K=115

Now, 2T-x10=K2T+x2-T

Solving x=3T2

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