The set-up illustrated above shows a capillary ... - WAEC Physics 1991 Question
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
A
76cm of Hg
B
75cm of Hg
C
74cm of Hg
D
60cm of Hg
correct option: b
P1 = p + 15, p2 = p - 15
v1 = 30cm, v2 = 45cm
P1v1 = p2v2
p = 75cm of Hg
v1 = 30cm, v2 = 45cm
P1v1 = p2v2
p = 75cm of Hg
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