Cream gets separated from a churned milk due to centrifugal force. Which of the following statements is correct?

Centrifugal force is a pseudo force that is equal and opposite to the centripetal force.
Centripetal force can be mechanical, electrical or magnetic force.
Centrifugal force is responsible for separation.
Centripetal force is responsible for separation.

Correct answer: Centrifugal force is responsible for separation.

Solution

Centrifugal force acts outward in a rotating frame and causes the denser milk to move outward, leaving the lighter cream at the center, leading to separation.

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