A metal plate of area` 5 cm ^(2)` is placed on a 0.5 mm thick castor oil layer .If a force of 22,500 dyne is needed to move the plate with a velcity of `3cms^(-1)` Calculate the coeffcient of viscosity of castor oil.

A metal plate of area 10^(3)" "cm^(2) rests on a layer o oil 6 mm thick. A tangential force of 10^(-2) N is appled on it to move it with a constant velocity of 6 cm s^(-1) . The coefficient of viscosity of the liquid is :-

A metal plate of area 10^(3)" "cm^(2) rests on a layer o oil 6 mm thick. A tangential force of 10^(-2) N is appled on it to move it with a constant velocity of 6 cm s^(-1) . The coefficient of viscosity of the liquid is :-

A metal plate of area 10^(3)" "cm^(2) rests on a layer o oil 6 mm thick. A tangential force of 10^(-2) N is appled on it to move it with a constant velocity of 6 cm s^(-1) . The coefficient of viscosity of the liquid is :-

A metal square plate of 10cm side rests on 2mm thick caster oil layer. Calculate the horizontal force needed to move the plate with speed 3cm s^(-1) : ( Coefficient of viscosity of caster oil is 15 poise. )

A metal square plate of 10cm side rests on 2mm thick caster oil layer. Calculate the horizontal force needed to move the plate with speed 3cm s^(-1) : ( Coefficient of viscosity of caster oil is 15 poise. )