Question on: WAEC Physics - 1991

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
Ask EduPadi AI for a detailed answer
Correct Option: B

P1 = p + 15, p2 = p - 15

v1 = 30cm, v2 = 45cm

P1v1 = p2v2

p = 75cm of Hg

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