Question

what are the uses of mercury barometer ?​

Answer 1

Answer:

A mercury barometer is a device that is used to measure the atmospheric pressure at a given location. The barometer consists of a vertical glass tube which is closed at one end. The closed-end is at the top and it sits in the mercury-filled basin placed at the bottom. It is an absolute pressure gauge.

Explanation:

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Answer 2

Answer:

Mercury barometers are primarily used for measuring atmospheric pressure.