Question

The difference is between viscosity and solid
friction is/are :
(a) viscosity depends on area while solid
friction does not.
(b) viscosity depends on nature of material but
solid friction does not.
(c) both (a) and (b)
(d) neither (a) nor (b)

Answer 1

(c) is the right answer........

Viscosity is proportional to the surface area whereas solid friction is independent of area of solid surfaces in contact. Viscous force on the body depends upon its velocity in the viscous media. But, friction does not depend on the velocity of the body.