Question
How is humidity measured?
✓
Answer
1. The amount of water vapour in 1 cu.m, of air is called the absolute humidity.
2. Absolute humidity is measured with the help the following formula:
Absolute humidity
$=\frac{\text { Mass of water vapour }}{\text { Volume of air }}$
3. The amount of water vapour present in air expressed as a percentage of the amount needed for saturation at the same temperature is called relative humidity.
4. Relative humidity is measured with the help of the following formula: Relative humidity (%)
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