Question

The capillary rise in soil (h, cm) with average pore radius (r, cm) is related as

• A. $hr= 0.15$
• B. $hr= 1.5$
• C. $hr= 0.30$
• D. $hr= 3.0$

Hint:

This relationship shows that capillary rise is inversely proportional to the pore radius ($h \propto \frac{1}{r}$):
- Clay soils have very small pore radii, resulting in a high capillary rise (up to several meters) but a slow rate of rise.
- Sandy soils have large pore radii, resulting in a low capillary rise but a rapid rate of rise.

Answer 1

The Correct Option is A