Agricultural Engineering > GATE 2017 > Dust Settling
Spherical dust particles of 50 μm are settling under gravity in air at 21°C and normal atmospheric pressure. Density of particles is 1250 kg/m³ and density of air is 1.2 kg/m³. Considering viscosity of air as 1.81 × 10-5 Pa s, the settling velocity of dust in mm/s will be
Correct : 94
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