engineering recuitment BEL Probationary Engineers Mock Test 2025 Fluid Mechanics Properties of Fluids Capillary Action
The capillary rise or fall of a liquid is given by (with usual notations):
1
h = σ cos θ / 4 ρ g d
2
h = 4 σ cos θ / ρ g d
3
h = 8 σ cos θ / ρ g d
4
None of the above