Momentum and CollisionHard
Question
Two very wide parallel glass plates are held vertically at a small separation, d, and dipped in water. Some water climes up in the gap between the plates. Let S be the surface tension of water, P0 = atmospheric pressure, P = pressure of water just below the water surface in the region between the plates -
Options
A.P = P0 - 
B.P = P0 +
C.P = P0 - 
D.P = P0 +
Solution
The free liquid surface between the plates is cylindrical and curved along one axis only so radius of curvature
r =
and P0 - P = 
⇒ P = P0 - 
r =
and P0 - P = ⇒ P = P0 - Create a free account to view solution
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