Assertion (A): Woolen clothes keep the body warm in winter Reason (R): Air is bad conductor of heat
Both A and R are true,
Both A and R are false
Both A and R are true, R is correct explanation of A
Both A and R are true, R is not correct explanation of A
A
Both A and R are false
B
Both A and R are true, R is correct explanation of A
C
Both A and R are true, R is not correct explanation of A
D
Both A and R are true,
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Solution
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Woollen clothes effectively separate the body from surrounding air by entrapping a layer of air. Since both wool and air are bad conductors of heat on varying levels, it creates separation that keeps bodies warm.
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Assertion (A): Woolen clothes keep the body warm in winter Reason (R): Air is bad conductor of heat
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