All Problems

Liquids. Capillary effects

Problem 2.166

A vertical capillary with inside diameter 0.50 mm0.50 \mathrm{~mm} is submerged into water so that the length of its part protruding over the water surface is equal to h=25 mmh=25 \mathrm{~mm}. Find the curvature radius of the meniscus.

Reveal Answer
R=2α/ρgh=0.6 mmR=2 \alpha / \rho g h=0.6 \mathrm{~mm}