A metal sphere of radius 1 mm and mass 50 mg falls vertically in glycerine, the viscous force exerted by the glycerine on the sphere when the speed of the sphere is 1ms^(-1) is (density of glycerine is 1260kg//m^(2) coefficient of viscosity at room temperature is 8 poise) F orliny .

A metal sphere of radius 1 mm and mass 50 mg falls vertically in glyce

1.	A metal sphere of radius 1 mm and mass 50 mg falls vertically in glycerine, the viscous force exerted by the glycerine on the sphere when the speed of the sphere is 1ms^(-1) is (density of glycerine is 1260kg//m^(2) coefficient of viscosity at room temperature is 8 poise) F orliny .
Answer» `3XX10^(-4)N` `1.5xx10^(-4)N` `4.5xx10^(-4)N` `0.5xx10^(4)N` ANSWER :B