Question

5 key points uses of Mercury barometer

Answer 1

Dear Student,

Mercury Barometer is the simplest device to measure atmospheric pressure at a location. It consists of a glass tube closed at one end immersed in a container filled with mercury. Because of the atmospheric pressure mercury rises in the tube.

Sometimes atmospheric pressure is expressed as "mms of mercury" . At sealevel conditions where the pressure value is 101,327 Pascals and the specific weight of mercury is 133,100 N/m3, the barometric height is 761 mm Hg. Water could be used as the barometer fluid, but in that case the height of water will be around 10.36m!

Hope it helps you!

Answer 2

1. Measurement of atmospheric pressure

2. Determining the altitude of a place

3. Weather Forecasting

4. Calibration and checking of aneroid barometers

5. Application in Fluid Mechanics