Multiple choice

The instrument used for measuring humidity of air is called-

  1. Calorimeter

  2. Hygrometer

  3. Pyrometer

  4. Hydrometer

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hygrometer measures humidity (water vapor content) in air. Calorimeter measures heat quantities, pyrometer measures high temperatures (especially in furnaces), and hydrometer measures liquid density/specific gravity.