WBCS.LIVE practice question

Which scientific instrument is used to measure the relative humidity of the air?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Barometer
  2. Hygrometer
  3. Hydrometer
  4. Altmeter

Correct answer and explanation

Correct answer: Hygrometer

Explanation: āœ… Correct Answer: B) Hygrometer šŸ“š Explanation: A hygrometer is an instrument used to measure the amount of water vapor in the atmosphere or in a confined space. Early models used human hair, which changes length with humidity, while modern versions use electronic sensors to provide digital readings. This measurement is vital for weather forecasting, agriculture, and maintaining controlled environments in libraries and museums.