The set-up illustrated above shows a capillary tube of uniform cross-sectional area in two different arrangements. Using the data in the diagrams. Calculate the pressure of the atmosphere
Attached Figure / Diagram
A
76cm of Hg
B
75cm of Hg
C
74cm of Hg
D
60cm of Hg
E
45cm of Hg
Verified Correct Answer: B.
Physical Principles & Numerical Solution
P1 = p + 15, p2 = p - 15
v1 = 30cm, v2 = 45cm
P1v1 = p2v2
p = 75cm of Hg
Source: Myschool Past Questions Archive (Record #33290)