engineering recuitment UPPSC AE Mock Test 2024 Fluid Mechanics Properties of Fluids Capillary Action
Which one of the following expresses the height of rising or fall of a liquid in a capillary tube?
Where w = Specific weight of the liquid, θ = Angle of contact of the liquid surface, σ = Surface tension, d = diameter of the capillary tube.
1
\(\frac{4wd}{\sigma \ cos\theta }\)
2
\(\frac{\sigma \ cos\theta}{4w\theta}\)
3
\(\frac{4\sigma \ cos\theta}{wd}\)
4
\(\frac{wd}{4\sigma \ cos\theta}\)