Which liquid is used in an aneroid barometer?

A. Mercury
B. Alcohol
C. Water
D. None of these

Check Answer

The correct answer is D) None of these.

An aneroid barometer is a type of barometer used to measure atmospheric pressure. Unlike a mercury barometer that uses mercury in a glass tube, an aneroid barometer uses a small, flexible metal box called an aneroid cell that is partially evacuated and reacts to changes in atmospheric pressure. Therefore, no liquid is used in an aneroid barometer.
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