Air is trapped in a horizontal glass tube by 36 cm mercury column as shown below :
If the tube is held vertical keeping the open end up, lengh of air column shrink to 19 cm. What is the lengh (in cm) by which the mercury column shifts down?

If above tube is held vertical with open end upward then find the length of air column (in cm).

A barometer tube reads 76 cm of mercury. If the tube is gradually inclined at an angle of 60 with vertical, keeping the open end immersed in the mercury reservoir, the length of the mercury column will be

A barometer tube reads 76 cm of mercury. If the tube is gradually inclined at an angle of 60 with vertical, keeping the open end immersed in the mercury reservoir, the length of the mercury column will be

A barometer tube reads 76 cm of mercury. If the tube is gradually inclined at the angle of 60^@ with vertical, keeping the open end immersed in the mercury reservoir, the length of the mercury column will be.

A uniform tube closed at aone end, contains a pellet of mercury 10cm long. When the tube is lept vertically with the closed-end upward, the length of the air column trapped is 20cm. Find the length of the air column trapped when the tube is inverted so that the closed-end goes down. Atmospheric pressure =75cm of mercury.