AIIMS2002Physics-Thermodynamics
AIIMS 2002 Physics Heat Transfer Assertion Reason Question
Type: Assertion Reason-conceptual-Easy-Class 11
Assertion : Woolen clothes keep the body warm in winter.
Reason : Air is a bad conductor of heat.
A
Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
B
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
C
Assertion is true but Reason is false.
D
Both Assertion and Reason are false.
Correct Answer
Option A
Detailed Explanation
Woollen fibres enclose a large amount of air in them. Both wool and air are the bad conductors of heat and their coefficient of thermal conductivity is small. Thus they prevent any loss of heat from our body.
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