GATE Civil Engineering (CE) 2014 Shift 2 Solved Paper

A suspension of sand like particles in water with particles of diameter 0.10 mm and below is flowing into a settling tank at 0.10 m³/s. Assume g = 9.81 m/s² , specific gravity of particles = 2.65, and kinematic vescosity of water = 1.0105 x 10^-2 cm²/s. The minimum surface area (in m²) required for this settling tank to remove particles of size 0.06 mm and above with 100% efficiency is_________