Woolen Clothes in Winter – Rankers Physics
Topic: Thermal Physics
Subtopic: Heat Transfer - Conduction and Convection

Woolen Clothes in Winter

Assertion (A): Woolen clothes keep the body warm in winter.
Reason (R): Woolen fibres enclose a large amount of air in them & both air and wool are the bad conductors of heat.
 
Both (A) & (R) are true and the (R) is the correct explanation of the (A)
Both (A) & (R) are true but the (R) is not the correct explanation of the (A)
(A) is true but (R) is false
Both (A) and (R) are false

Solution:

Woolen clothes trap air, which is a poor conductor of heat, reducing heat loss from the body. Wool itself is also a poor conductor. Both A and R are true, and R explains A.

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