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Question: Answered & Verified by Expert
Assertion : Coefficient of thermal conductivity of a metal rod is a function of length of the rod. Reason : Longer the rod, larger is the amount of heat conducted.
PhysicsThermal Properties of MatterAIIMSAIIMS 2019 (25 May)
Options:
  • A If both assertion and reason are true and reason is the correct explanation of assertion.
  • B If both assertion and reason are true but reason is not the correct explanation of assertion.
  • C If assertion is true but reason is false.
  • D If both assertion and reason are false.
Solution:
2952 Upvotes Verified Answer
The correct answer is: If both assertion and reason are false.
Coefficient of thermal conductivity depends only on nature of material of the rod and the length of rod is inversely proportional to the amount of heat conducted, $\Delta Q \propto 1 / \Delta x$.

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