The gap between two parallel Plates is filled with oil of viscosity μ. The gap h is small Compared to the plate sizes. lf one of the plates is moved with velocity U in its own plane (relative to the other). What is the force required to sustain this motion?
1
Proportional to U, inversely to μ and h
2
Proportional to μ, U and inversely to h
3
Inversely proportional to μ, U and h
4
Proportional to μ, U and h
5
Proportional to μ, h and inversely to U