Question
How is the gravitational force between two point masses affected when they are dipped in water keeping the separation between them the same?
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Answer
The Newton’s Universal law of gravitational force of attraction (F) between two bodies of masses m1, m2 separated by distance r is $\text{F}=\frac{\text{Gm}_1\text{m}_2}{\text{r}^2}$ G does not depend upon the medium. So force of attraction does not change if the masses are kept in water or any other medium.
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