Question

define+a+mercury+barometer

Answer 1

the instrument used to measure pressure in a medium. or in air

using mercury is called barometer

Answer 2

A MERCURY BAROMETER IS A SPECIAL BAROMETER THAT'S HAS A MERCURY FILLED BASE AT THE BOTTOM AND A TUBE WITH OPEN END AND CLOSED END DIPPED INTO IT. THE MERCURY BAROMETER WORKS UNDER ATMOSPHERE PRESSURE WHICH MAKES THE MERCURY IN THE RESERVOIR TO MOVE UP. WHEN THE ATMOSPHERIC PRESSURE IS LOW, THE MERCURY LEVEL DROPS DOWN, WITH ALMOST NO AIR IN THE RESERVOIR.

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