Question

A bottle of soda water is held by the neck and swung briskly in a horizontal circle. Near which position of the bottle do the water collect $?$
$\left( A \right)\,\,$in the middle of the bottle
$\left( B \right)$ near the bottom
$\left( C \right)$ bubbies uniformly distributed
$\left( D \right)$ near the neck

Answer 1

Hint From the question we know that the bottle is swung briskly in a horizontal circle so the centrifugal force says that the apparent force that is felt by an object moving in a curved path, the force acts outwards away from the center of rotation.

Complete step-by-step solution :
We know that from the question, A bottle is held in the neck, it is filled with soda water. If the fluid is inside the bottle. The bottle must shake if the bottle shakes there might create a force. Because of the lightness of the gas bubble they feel less centrifugal force so they get collected near the neck of the bottle. They collect near the centre of circular motion.
Therefore, Due to the centre of the circular motion, they collect the bottle near the neck.
Hence from the above option, option $\left( D \right)$is correct.

Note:- From the question, the bottle is swung outside a horizontal circle. So we know that the centrifugal force acts on the bottle. Here, If the centripetal force acts on the bottle. Centripetal force says that the force acts inwards away from the centre of rotation. In centripetal force, the bottle collects near the bottom.