Question

name the instrument which is used to measure humidity

Answer 1

Hygrometer is the instrument used to measure humidity.

Answer 2

Humidity is the measure of the amount of moisture in the air. A psychrometer is an example of a hygrometer. A psychrometer uses two thermometers to measure relative humidity; one measures the dry-bulb temperature and the other measures the wet-bulb temperature.  hope this helps! ^v^