Which of the following devices is used for the measurement of temperature?
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Manometer
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Hydrometer
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Barometer
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Thermometer
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None of these
D
Correct answer
Explanation
A thermometer is the specific device designed for measuring temperature. Manometers measure pressure, hydrometers measure liquid density, and barometers measure atmospheric pressure. Thermometers work on principles like thermal expansion of liquids (mercury, alcohol) or electrical resistance changes.