Question

The shear stress developed in a lubricating oil, of viscosity 9.81 poise, filed between two parallel plates 1 cm apart and moving with relative velocity, of 2 m/s is                          

(a) 20 N/m²                  (b) 196.2 N/m²

(c) 29.62 N/m²             (d) 40 N/m²