Question

When the distance between two charged particles is made one-
third, the force between them becomes :​

Answer 1

Answer:  force increases by 9 times

Explanation:  F=Gm1m2/r^2     ('^'means raised by power)

                   

if distance is reduced to 1/3

then ,

           Gm1m2/[(1/3)R]^2

           Gm1m2/(1/9)R^2

           9Gm1m2/R^2                    [reciprocaled 1/9]

           9F                                        [F=Gm1m2/R^2]

so, force becomes 9 times greater