# What is Newton's law of viscosity?

Equation (3.1. 3) is called the Newton's law of viscosity and states that**the shear stress between adjacent fluid layers is proportional to the negative value of the velocity gradient between the two layers**.

## On which Newton's law of viscosity depends?

According to Newton's law of viscosity, shear stress is directly proportional to the rate of angular deformation (shear strain rate) or velocity gradient across the flow.## What is SI unit of Newton's law of viscosity?

Viscosity can be defined as the measure of a fluid's resistance to deformation at a given flow. Caused by friction within a fluid. Result of intermolecular forces between the particles within a fluid. SI unit N-s/m^{2}or Pa-s. Dynamic viscosity = Kinematic viscosity / Density of fluid.

## What is Newton law in fluid mechanics?

Newton's law applied to the fluid control volume states that the sum of all forces that act upon the control volume is equal to the net rate of mechanical momentum relative to the control volume (Figs.## What is Newton's law of viscous force and Stokes force explain mathematically?

Stoke's Law EquationSir George G. Stokes, an English scientist, clearly expressed the viscous drag force F as: F = 6 π η r v. Where r is the sphere radius, η is the fluid viscosity, and v is the sphere's velocity.

## Viscosity and Newton's law of viscosity

## What is Newton's law of viscosity class 11?

According to Newton's law of viscosity. The shear stress is directly proportional to the velocity gradient. The shear stress between the two adjacent layers of the fluid is directly proportional to the negative value of the velocity gradient between the same two adjacent layers of the fluid.## What is the symbol for viscosity?

Viscosity is usually denoted by the Greek symbol μ (mu) and is defined as the ratio of shearing stress τ (Greek letter tau) to the rate of change of velocity, v, which in mathematical terms can be expressed as dv/dy (where this is the derivative of the of the velocity with respect to the distance y).## What do you mean by viscosity?

Viscosity is a measure of a fluid's resistance to flow.## What does Newton's law of viscosity state Mcq?

Newton's law of viscosity states that Viscositythe shear stress applied to the fluid is directly proportional to the velocity gradient (du/dy)

## What is difference between Newtonian and non-Newtonian fluid?

Newtonian liquids such as water do not change viscosity when force is applied. Non-Newtonian fluids such as ketchup change viscosity when force is applied.## What is Newtonian fluid Mcq?

Newton Law of Viscosity MCQ Question 1 Detailed SolutionA fluid whose viscosity does not change with the rate of deformation or shear strain is known as a Newtonian fluid.