A measuring jar of internal diameter 10 cm is partially filled with water. Four equal spherical balls of diameter 2 cm each are dropped in it and they sink down in water completely. What will be the change in the level of water in the jar?

Volume of a sphere = (4/3)πr³

Volume of a cylinder = πr²h

Amount of water displaced = Volume of the spheres

Given, measuring jar of internal diameter 10 cm is partially filled with water. Four equal spherical balls of diameter 2 cm each are dropped in it and they sink down in water completely.

Let the rise in level of water be ‘h’ cm.

⇒ h = 16/75 cm