Relative humidity is the percentage of t...

Relative humidity is the percentage of the

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`=((("actual mass of water vapour "),("Content in the air in a given volume")))/((("mass of vapour needed to make the air" ),("saturated in that volume")))xx 100`

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The amount of water vapour in the air at any given timeis usually less than that required to saturate the air. Reason (R) : The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.

If (A) and (R) are correct and (R) is the correct explanation of (A)

If (A) and (R) are correct but (R) is not the correct explanation of (A)

IF (A) is true but (R) is false

If (A) is false but (R) is true

Assertion (A): Relative humidity is the ratio of the current absolute humidity to the highest possible absolute humidity Reason (R): Reading of 100 percent relative humidity means that the air is totally saturated with water vapour and cannot hold any more, creating the possibility of rain.

If (A) and (R) are correct and (R) is the correct explanation of (A)

If (A) and (R) are correct but (R) is not the correct explanation of (A)

If (A) is true but (R) is false

If (A) is false but (R) is true

Relative humidity refers to:

Absolute amount of water vapour in the atmosphere

The amount of hygroscopic nuclei in the atmosphere

Saturated vapour pressure

Ration of actual amount of water vapour in the air to the amount it could hold at the temperature