Multiple choice

Which of the following apparatus is used to measure the relative humidity of air?

  1. Maximum - minimum thermometer

  2. Rain gauge

  3. Stethoscope

  4. Hygrometer
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A hygrometer is specifically designed to measure the relative humidity of air - the amount of moisture present compared to the maximum possible at that temperature. Maximum-minimum thermometer measures temperature range. Rain gauge measures rainfall. Stethoscope is a medical instrument for listening to body sounds. Hygrometers are essential weather instruments and are also used indoors to monitor humidity levels for comfort and health.

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