Capillary rise (descent)
$$h = \frac{2\cdot \sigma}{\rho\cdot g\cdot r}$$
h - height
σ - surface tension coefficient
ρ - density
g - free fall acceleration
r - capillary radius
σ - surface tension coefficient
ρ - density
g - free fall acceleration
r - capillary radius
Find
It is known that:
= 