A thin tube of uniform cross-section is sealed at both ends
PHYSICS · Subjective · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics
Problem
A thin tube of uniform cross-section is sealed at both ends. It lies horizontally. The middle 5 cm containing Hg and the two equal ends containing air at the same pressure P0 . When the tube is held at an angle 60∘ with the vertical, the length of the air column above and below the mercury are 46 and 44.5 cm respectively. Calculate the pressure P0 in cm of Hg. (The temperature of the system is kept at 30∘C )