A space `2.5cm` wide between two large plane surfaces is filled with oil. Force required to drag a very thin plate of area `0.5m^2` just midway the surfaces at a speed of `0.5(m)/(sec)` is `1N`. The coefficient of viscosity in `kg-(s)/(m^2)` is:

The space between two large plane surfaces is 2.5 cm and it is filled with glycerine. What force is required to drag a very thin plate 1 m^2 in area, between the surfaces at a speed of 1m/s ? (The plate is at a distance of 1 cm from one of the surfaces. ) (eta=0.75Ns//m^2)

Calculate the force required to move a flat metal plate of area 25cm^2 with a uniform velocity of 20 m//s over the surface of a liquid 1 mm thick if the coefficient of viscosity (n) is 2 Ns//m^2

The surface tension of liquid is 5 N//m . If a thin film of area 0.04 m^2 is formed on a loop, then its surface energy will be

The force of 2000 dyne is required to move a flat glass plate of surface area 10 cm^(2) with a velocity of 1 cm/s over a surface of glycerine 1 mm thick. The coefficient of viscosity of glycerine is

The force of 2000 dyne is required to move a flat glass plate of surface area 10 cm^(2) with a velocity of 1 cm/s over a surface of glycerine 1 mm thick. The coefficient of viscosity of glycerine is

Glycerine is filled in 25 mm wide space between two large plane horizontal surfaces. A thin plate of area 0.75 m^(2) at a distance of 10 mm from one of the surfaces is in a horizontal position be the plates inside the glycerine. It is dragged horizontally at a constant speed of 0.5 ms^(2) . Take coefficient of viscosity eta =" 0.5 Ns m"^(-2) . What is the force required to drag the plate at a constant speed (in newton) ?

Glycerine is filled in 25 mm wide space between two large plane horizontal surfaces. A thin plate of area 0.75 m^(2) at a distance of 10 mm from one of the surfaces is in a horizontal position be the plates inside the glycerine. It is dragged horizontally at a constant speed of 0.5 ms^(2) . Take coefficient of viscosity eta =" 0.5 Ns m"^(-2) . What is the force required to drag the plate at a constant speed (in newton) ?

A metal plate of area 500 cm^92) is kept on a horizontal surface with a layer of oil of thickness 0.5 mm between them. The horizontal force required to drag the plate with a velocity of 2 cm/s is (coefficient of viscosity =0.9 kg/ms)