The solid substance is called the sediments.
A centrifuge is an instrument which makes use of centrifugal force to separate heavy particles suspended in a fluid to the base of the tube.
A centrifuge sediments particles suspended in fluid by exerting a force
greater than that of gravity.
The greater the outward
pull due to rotation, that is centrifugal force, the more
rapid and effective is the sedimentation.
Solid or heavy particles called sediment settles first at the bottom of the tube followed by lighter particles.
Therefore, the solid substance that spins to the bottom of the tube with a successful centrifugation is called the sediments.
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