Question

theory of sedimentation

Answer 1

hii..here is ur answer..
The theory assumes that the speed of fall of particles in a dispersion is determined by the local particle density only.
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Answer 2

Sedimentation is the tendency for particles in suspension to settle out of the fluid in which they are entrained and come to rest against a barrier. This is due to their motion through the fluid in response to the forces acting on them: these forces can be due to gravity, centrifugal acceleration, or electromagnetism.