Half the length of a 80cm long open glass tube of narrow bore is immersed in mercury vertically. The open end of the tube is then closed and it is raised upwards so that a column of mercury of length 23 cm remains inside the tube.What is the atmospheric pressure?

Half the length of a 80cm long open glass tube of narrow bore is immer

1.	Half the length of a 80cm long open glass tube of narrow bore is immersed in mercury vertically. The open end of the tube is then closed and it is raised upwards so that a column of mercury of length 23 cm remains inside the tube.What is the atmospheric pressure?
Answer» ANSWER :77.12 CM