Question

Assertion (A): The temperature at which saturation occurs in a given sample of air is called the dew point.

Reason (R): The ability of the air to hold moisture depends upon its temperature.

Options

• Both A and R are true, and R is the correct reason for A.

• Both A and R are true, but R is not the correct reason for A.

• A is true, and R is false.

• A is false, and R is true.

Answer 1

Both A and R are true, and R is the correct reason for A.

Explanation:

The dew point is defined as the temperature at which air becomes saturated with moisture, meaning condensation begins. This happens when the air cannot hold any more water vapor and saturation is reached. The ability of air to hold moisture is directly dependent on its temperature. Warmer air can hold more water vapor, and cooler air less.