Correct Answer - Option 1 : 15 × 10
–7 m/s
Concept:
Seepage velocity is given by;
Vs = V/n
Where, V = Discharge velocity, n = Porosity
n = e/(1 + e)
e = Void ratio
Calculation:
Given, V = 5 × 10-7 m/s, e = 0.5
Porosity (n) = e/(1 + e) = 0.5/1.5 = 0.333
Seepage velocity (Vs) = V/n = (5 × 10-7)/0.3333 = 15 × 10-7 m/s