A uniform glass tube closed at one end contains some air at 27^@C confined by a mercury thread of length 4 cm. When the tube is held vertically with its open end at the top,the length of the confined air column is 9cm. IF the tube is inverted then the length of that air column becomes 10 cm. Determine the atmospheric pressure.

A uniform glass tube closed at one end contains some air at 27^@C conf

1.	A uniform glass tube closed at one end contains some air at 27^@C confined by a mercury thread of length 4 cm. When the tube is held vertically with its open end at the top,the length of the confined air column is 9cm. IF the tube is inverted then the length of that air column becomes 10 cm. Determine the atmospheric pressure.
Answer» ANSWER :76 CMHG