Question

Description, working principle, uses of mercury Barometer in brief( 80 - 90 words).

Answer 1

$<p style="color:cyan;font-family:cursive;background :black;font-size:25px;">A barometer is a scientific instrument that is used to measure air pressure in a certain environment. Pressure tendency can forecast short term changes in the weather. Many measurements of air pressure are used within surface weather analysis to help find surface troughs, pressure systems and frontal boundaries.Mercury barometers are primarily used for measuring atmospheric pressure. ... The atmosphere (or the air) pushes down on the mercuryin the vessel, which in turn, pushes themercury in the tube up. And the height ofmercury in this tube (also known as the height of mercurycolumn) is used as a measure. Hope it helps..</p>$

Answer 2

Answer:

A barometer is a scientific instrument that is used to measure air pressure in a certain environment. Pressure tendency can forecast short term changes in the weather. Many measurements of air pressure are used within surface weather analysis to help find surface troughs, pressure systems and frontal boundaries.Mercury barometers are primarily used for measuring atmospheric pressure. ... The atmosphere (or the air) pushes down on the mercuryin the vessel, which in turn, pushes themercury in the tube up. And the height ofmercury in this tube (also known as the height of mercurycolumn) is used as a measure. Hope it