Which of the following device is used to measure humidity?
Hygrometer
A hygrometer is the instrument used to measure the amount of water vapour (humidity) in the air. Mechanical, electronic and dew-point variants all serve this purpose.
Distractors: a hydrometer measures specific gravity of liquids; an anemometer measures wind speed; "Psycho Meter" is a misspelling and not a standard instrument (a psychrometer is a sub-type of hygrometer, but the generic device name is hygrometer).
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Select the correct answer using the code given below.
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