Water rises to height $h$ in a capillary tube of radius $r$. If the radius is doubled (same tube material and liquid), the new height is:
Solution
$h = \frac{2T\cos\theta}{\rho g r}$ ⇒ $h \propto 1/r$. Doubling $r$ gives $h/2$.
About this question
Subject: Physics · Chapter: Properties of Solids and Liquids · Topic: Surface Tension
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