Question

Two vertical parallel glass plates are partially submerged in water. The distance between the plates is d and the length is L. Assume that the water between the plates does not reach the upper edges of the plates and that the wetting is complete. To what height will the water rise? $(\rho =$ density of water and $\sigma =$ surface tension of water).

Answer 1

R.E.F image

Let F be the face carved

due to surface tension

$F=TL$

Capillary use can found out

as the rise of fluid due

to surface forces

Let h be the use from

the surface

Using newton's laws, we can found the Weight

Surface tension force = weight of fluid

$2\sigma =\rho \times \left(d\&h\right)\times g$

$h=\frac{2\sigma }{\rho h_{g}d}$

$h=\frac{2\sigma }{\rho gd}$