Question

What is the principle of centrifugation?

• A. Sedimentation principle
• B. Filtration principle
• C. Evaporation principle
• D. Size reduction principle

Hint:

Centrifugation is a key technique used in laboratories to separate particles based on their size and density. Understanding the sedimentation principle can help in optimizing the process for better separation efficiency.

Answer 1

The Correct Option is A

Centrifugation is based on the sedimentation principle, which involves the separation of particles from a liquid or suspension by the application of centrifugal force. The principle behind centrifugation is that particles of different densities will experience different levels of force when subjected to a rotating force (centrifugal force). Heavier particles will settle faster at the bottom of the container, whereas lighter particles will stay suspended in the liquid.
- Option (2), the filtration principle, is incorrect because filtration involves separating particles from a liquid using a porous medium. It is not related to centrifugal force.
- Option (3), the evaporation principle, refers to the process where a liquid is converted into a gas due to heat, which is also unrelated to centrifugation.
- Option (4), the size reduction principle, involves reducing the size of particles and is not related to the concept of centrifugation.
Thus, the correct answer is option (1): Sedimentation principle.