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Which instrument is generally used to measure humidity?

Answer and explanation

Correct answer: Hygrometer

Correct answer: B, hygrometer. Humidity means the amount of water vapour present in air, and a hygrometer is designed to measure this moisture. Some hygrometers use changes in materials, temperature, or electrical properties to estimate humidity; the basic school-level identification is enough here. A rain gauge measures the amount of rainfall collected over a period, not the moisture content of air. C, a seismograph, records vibrations caused by earthquakes and other ground movements. D, a compass shows direction by using a magnetic needle; it does not measure atmospheric moisture. Thus B is the only instrument whose function matches the question. A useful distinction is: humidity is measured by a hygrometer, rainfall by a rain gauge, earthquakes by a seismograph, and direction by a compass. Memory cue: ‘hygro’ is associated with moisture or humidity.

Related tags

GeographyHygrometerHumidityInstrumentsEvaporationAnd CondensationHumidity Evaporation And CondensationWater In The AtmosphereClass 12 Mcq

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