WebIn the mercury barometer, atmospheric pressure balances a column of mercury, the height of which can be precisely measured. To increase their accuracy, mercury barometers are often corrected for ambient … Web19 jun. 2024 · 1. A vacuum must exist above the meniscus of the column so that the mercury can rise above 760mm (or 30 in.) which is what a mercury barometer reads at sea level. In other words, the mercury column needs headroom to rise with increasing ambient atmospheric pressure. A barometer capillary tube with a ball pediment cistern must have …
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Web31 dec. 2024 · Mercury barometer is a simple barometer that uses mercury to measure the atmospheric pressure. Mercury is a metal and is in the liquid phase at room temperature. … Web22 jul. 2024 · Evangelista Torricelli invented the mercurial barometer Barometer – Pronunciation: [b u rom´ u t u r] – a barometer is an instrument for measuring … dragon ball broly peli
Write the 10 uses of mercury barometer. - Toppr
WebA mercury barometer is basically just a scale that measures the weight of the atmosphere above. You can't use an ordinary pan balance to weight the atmosphere (because air is … WebAneroid barometers contain a metal chamber that is sensitive to variation in air pressure, allowing it to be much smaller than a mercury barometer, which requires a long glass tube, but allows for finer and more accurate measurements.) The density of mercury is 13.5 times greater than the density of water. WebMercurial barometer. Based on a principle developed by Evangelista Torricelli in 1643, the Mercurial Barometer is an instrument used for measuring the change in atmospheric … emily oberlin