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Question

Relative humidity is:

सापेक्ष आर्द्रता है:

A.

Something concerned with air conditioning

B.

The ratio of moisture present in air to the capability of air to hold maximum moisture

C.

The ratio of actual humidity to absolute humidity

D.

Representative of amount of moisture held in air

Answer ( Option B)

The ratio of moisture present in air to the capability of air to hold maximum moisture

Solution

Relative humidity is the ratio of mass of vapour present in the air to the mass that would be present if the air were saturated.

           

Where, pv =  partial pressure of water vapour corresponding to DPT

           pvs =  partial pressure of water vapour corresponding to DBT

Hence, the correct option is (B).

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