Question

Assertion: It takes longer to dry wet clothes in humid weather.
Reason: The presence of humidity in the atmosphere means water vapour in the atmosphere is already heavy so when we try to dry clothes the evaporation process is slow but effective due to the presence of water vapour in the air.
(A) Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
(B) Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
(C) Assertion is correct but Reason is incorrect
(D) Both Assertion and Reason are incorrect

Answer 1

Hint : Humidity refers to the amount of water vapour in the air. The gaseous condition of water, known as water vapour, is often undetectable to the naked eye. The presence of precipitation, dew, or fog is indicated by humidity. Humidity is determined by the system's temperature and pressure. Cool air has a higher humidity than warm air when the same amount of water vapour is present.

Complete Step By Step Answer:
The dew point is a related metric. As the temperature rises, the amount of water vapour required to reach saturation rises as well. When the temperature of a parcel of air drops below a certain level, it will ultimately approach saturation without adding or losing water mass. The quantity of water vapour in a given volume of air can vary dramatically. Humidity has a significant impact on surface life. High humidity reduces the rate of moisture evaporation from skin surfaces, which reduces heat exchange efficiency in animals that rely on perspiration (sweating) to control internal body temperature. A heat index table, often known as a humidex, can be used to determine this impact. Humidity refers to the quantity of water in the air. At a particular temperature, the air surrounding us cannot retain any more water vapour. If there is already a lot of water in the air. The rate of evaporation then slows.
On a hot day, the air already contains a substantial amount of water vapour. As a result, the rate of evaporation slows, and wet garments take longer to dry in humid conditions.
Hence option A is correct.

Note :
The idea of air "holding" or being "saturated" by water vapour is frequently emphasised in relation to the concept of relative humidity. This is deceptive, because the quantity of water vapour that enters (or can enter) a given region at a particular temperature is virtually completely independent of the amount of air (nitrogen, oxygen, and so on) present. Indeed, the equilibrium capacity to hold water vapour in a vacuum is roughly the same as the same volume filled with air; both are determined by the equilibrium vapour pressure of water at the particular temperature.