State whether the given statement is true or false.

There is a diagram of mercury barometer.

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True

False

answer is A.

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Detailed Solution

The given statement is true.
Concept- The essential components of a mercury barometer are a long tube of a specific length, a reservoir to hold the mercury, and the necessary quantity of mercury. The apparatus used in Torricelli's experiment has not been altered. It is known as a mercury-filled glass manometer.
An instrument used to gauge atmospheric pressure is known as a barometer. It is mostly used to determine altitude and for weather forecasting.
Mercury construction barometer
A mercury barometer, sometimes referred to as the Torricellian barometer, is composed of a three-foot-long upside-down glass tube with one end that is closed and the other end that is arranged to stand in a glass reservoir filled with mercury.
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How a mercury barometer works: When a glass tube is submerged in mercury, the atmosphere's air pressure presses on the mercury's surface. As a result, part of the mercury inside the tube starts to rise. If the atmospheric air pressure is higher, the mercury within the tube will increase. The data recorded in the glass tube can be used to determine the atmospheric pressure. The increase of mercury in the tube is smaller when there is less atmospheric pressure.
Hence, the given statement is true.

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