A 0.5 M High Bed Made Up Of A 1 Mm Dia Glass Sphere (Density 2500 Kg/M3 ) Is To Be Fluidised By Water (Density 1000 Kg/M3 ). If At The Point Of Incipient Fluidisation, The Bed Voidage Is 40%, The Pressure Drop Across The Bed Is--------?

A 0.5 M High Bed Made Up Of A 1 Mm Dia Glass Sphere (Density 2500 Kg/M3 ) Is To Be Fluidised By Water (Density 1000 Kg/M3 ). If At The Point Of Incipient Fluidisation, The Bed Voidage Is 40%, The Pressure Drop Across The Bed Is--------?