Question

Assertion (A): Wet clothes dry faster on a windy day.

Reason (R): Rate of evaporation is proportional to humidity.

• A. Both A and R are true and R is the correct explanation of A.
• B. Both A and R are true, but R is not the correct explanation of A.
• C. A is true and R is false.
• D. A is false and R is true.

Answer 1

The correct option is C

A is true and R is false.

Explanation for Assertion statement: The rate of evaporation rises as the wind speed rises. The particles of water vapor migrate away with the wind as the wind speed increases, reducing the amount of water vapor in the surrounding. As a result, on a windy day, clothes dry faster.

Explanation for Reason statement: On humid days, there is already enough water vapor in the air, slowing evaporation and causing wet clothes to dry more slowly. The temperature and wind speed remains constant but the humidity rises, and the rate of evaporation falls.

Conclusion: Hence, option (c) is correct.