Question

How is the gravitational force between two point masses affected when they are dipped in water keeping the separation between them the same?

Answer 1

Since, `F = (Gm_(1) m_(2))/(r^(2))`, is independent of the nature of medium between two point masses `m_(1)` and `m_(2)`.
Therefore, the gravitational force between two point masses will not be affected, when they are dipped in water.