Multiple choice general knowledge science & technology

The instrument used to measure the relative humidity of air is

  1. Humidmeter

  2. Barometer

  3. Thermometer

  4. Hygrometer
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D Correct answer
Explanation

A hygrometer is the scientific instrument specifically designed to measure relative humidity in the atmosphere. A barometer measures air pressure, while a thermometer measures temperature. 'Humidmeter' is not a standard scientific instrument.

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