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wind_swiff
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Homework Statement
It is known that water in a capillary will rise to a certain height, as shown in the figure. Comparing the points P and Q, which point exhibit larger pressure?
a. P
b. Q
c. The pressure of P and Q are the same
Homework Equations
F_upward=2*pi*R*T*cosθ
W=pi*R^2* ρgh
as upward force is counteracted by the weight of water
therefore the height of the column, h=(2T*cosθ)/Rρg
The Attempt at a Solution
I think the pressure of P and Q should be same as they are at the same height, but can anyone give me an explanatory term for it?
Should I consider the surface tension and so on for this question ??