At sea level, the average atmospheric pressure is equal to 76 cm of Hg.
At normal room temperature, atmospheric pressure is less than 76 cm of Hg.
The normal atmospheric pressure is : (a) 76 m of Hg (b) 76 cm of Hg (c) 76 Pa (d) 76 N m−2
In the experiment given below, if the atmospheric pressure is 76 cm of Hg (h0) and the height is 3 cm, find the pressure of the gas in the tube.