3681. A soil sample has porosity of 30%. Its voids ratio in the loosest and densest state is 0.35 and 0.92 respectively. What will be its density index? [BB-20] 
                
                                    ব্যাখ্যা: 
Given data,
emin = 0.35 
emax = 0.92 Id = ? 
n = 30% 
n=e/(1+e)
So, e=0.428
We know that,
Id = (emax-e)/(emax-emin)
 (0.92-0.428)/( 0.92-0.35 )
= 0.863
= 0.861