A 10.0 cm column of air is trapped by a column of Hg 4.00 cm long in capillary tube of uniform bore when the tube is held horizontally in a room at 1 atm. Length of the air column when the tube is held vertically with the open end up is

Options

A. 9.50 cm
B. 10.52 cm
C. 3.53 cm
D. 4.61 cm

Answer

A