Question

When two capillary tubes of different diameters are dipped vertically, the rise of the liquid is

• A. Same in both the tubes
• B. More in the tube of larger diameter
• C. Less in the tube of smaller diameter
• D. More in the tube of smaller diameter

Answer 1

The correct option is D

More in the tube of smaller diameter

$h=\frac{2Tcos\theta }{rdg}\therefore h\propto \frac{1}{r}$ (T,$\theta$,d and g are constant)

If r is less then h will be more.