Reynolds number is the ratio of
(A) Viscous forces to gravity forces
(B) Inertial forces to viscous forces
(C) Viscous forces to inertial forces
(D) Inertial forces to gravity forces
(A) Viscous forces to gravity forces
(B) Inertial forces to viscous forces
(C) Viscous forces to inertial forces
(D) Inertial forces to gravity forces