What instrument is used to measure atmospheric pressure?

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Barometer

Calorimeter

Thermometer

Speedometer

answer is A.

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Detailed Solution

Concept: To understand which instrument is used to measure atmospheric pressure, we must first understand atmospheric pressure. Atmospheric pressure is nothing but the force per unit area. Because we know that atmospheric pressure varies with distance above or below sea level, we need a device to measure it.
An instrument that indicates whether the atmospheric pressure is rising or falling. Many Italian miners were perplexed in the early 17th century when their water pumps refused to raise the water after a certain height. A barometer is a device that measures atmospheric pressure based on the weight of the air column. It was invented by the Italian scientist Evangelista Torricelli, who also created the first barometer. A barometer can be used to measure the weather patterns.
As a result, we can say that the Barometer is an instrument used to measure atmospheric pressure.
Hence, the correct option is 1.

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