Two spheres of masses $m$ and $M$ are situated in air and the gravitational force between them is $F

Question

Two spheres of masses $m$ and $M$ are situated in air and the gravitational force between them is $F$. The space around the masses is now filled with a liquid of specific gravity 5. The gravitational force will now be

Professor PC Thomas Classes · Answer

Gravitational force is independent of the intervening medium.