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What is atmospheric pressure ?...

What is atmospheric pressure ?

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Pressure produced due to atmosphere is know as atmospheric pressure.
The pressure of the atmosphere at any point is equal to the weight of a column of air of unit cross sectional area extending from that point to the top of the atmosphere.
At sea level it is `1.013xx10^(10^(5)P_(a)`
(1 atm =1 atmosphere)
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