A narrow uniform glass tube 80 cm long and open at both ends is half immersed in
Channel: Doubtnut
Date: 02/08/2020

A narrow uniform glass tube 80 cm long and open at both ends is half immersed in mercurry. Then the top of the tube is closed and it is taken out of mercury. A column of mercury 22 cm long then remains in the tube. What is the atmospheric pressure?