Question

newtons law of viscosity is a relationship between (a) pressure, velocity and temperature (b) shear stress and rate of shear strain (c) shear stress and velocity (d) rate of shear strain and temperature answer: option b

Answer 1

neuwtons law velocity is a relationship between pressure velocity and temperature

Answer 2

NEWTON'S LAW OF VISCOSITY

Newton's law of viscosity is a relationship between (B) shear stress and rate of shear strain.

GETTING TO KNOW MORE ABOUT NEWTON'S LAW OF VISCOSITY:

* A Newtonian fluid is one in which the viscous stresses generated from its flow are linearly connected to the local strain rate — the rate at which its deformation changes over time — at every site. The rate of change of the fluid's velocity vector determines the stress.

* Only if the tensors that characterise viscous stress and strain rate are coupled by a constant viscosity tensor that is independent of the flow's stress state and velocity is the fluid Newtonian.

*  The viscosity tensor is reduced to two real coefficients characterising the fluid's resistance to continuous shear deformation and continuous compression or expansion, respectively, if the fluid is also isotropic (mechanical characteristics are the same in all directions).