Question

Write four conditions of Stokes' Law.​

Answer 1

Answer:

There are only three 3 conditions under which Stroke's law is valid,

The conditions are :

Explanation:

1) The law applies to a fluid of infinite extent .

2) The law does not hold good if the spherical body is moving so fast that conditions are not streamline.

3) The spherical body must be rigid and smooth .

Answer 2

Answer:

Stoke’s Law is an equation that expresses the settling velocities of small spherical particles in a fluid medium. The law is established by taking into account the forces acting on a certain particle as it falls through a liquid column under the influence of gravity.

Explanation:

Conditions under which Stoke’s law exists valid are:

• The fluid through which the body moves must hold an infinite extension.              
• The body exists perfectly rigid and smooth.                                      
• There exists no slip between the body and the fluid. The motion of the body does not provide rise to turbulent motion. Therefore, the motion is streamlined.
• The size of the body is small, but it exists larger than the distance between the molecules of the liquid. Therefore, the medium stands homogeneous and continuous for such a body.

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