What is the porosity percentage if the particle density of soil is 2.6 and bulk density is 1.3

A. 35%

B. 60%

C. 50%

D. 85%

Answer: Option C

Solution(By Examveda Team)

If the particle density of soil is 2.6 and bulk density is 1.3 then the porosity percentage will be:
$$\eqalign{ & {\text{Soil porosity}} = \left( {1 - \frac{{{\text{Bulk Density}}}}{{{\text{Particle Density}}}}} \right) \times 100 \cr & = \left( {1 - \frac{{2.6}}{{1.3}}} \right) \times 100 \cr & = 0.5 \times 100 \cr & = 50\% \cr} $$