Pressure diffence between water column in capillary tube and open vessel

wind_swiff
Messages
1
Reaction score
0

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*cos⁡θ
W=pi*R^2* ρgh
as upward force is counteracted by the weight of water
therefore the height of the column, h=(2T*cos⁡θ)/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 ??
 
Physics news on Phys.org
It would not hurt to have a description of points P and Q or better yet a picture.
 

Similar threads

  • · Replies 3 ·
Replies
3
Views
2K
Replies
3
Views
2K
Replies
1
Views
2K
Replies
16
Views
6K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 1 ·
Replies
1
Views
7K
  • · Replies 8 ·
Replies
8
Views
4K
  • · Replies 7 ·
Replies
7
Views
14K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 5 ·
Replies
5
Views
5K