Two metal spheres of equal radius r are touching each other. The force of attraction F between them is

\[F\propto \frac{1}{{{r}^{2}}}\]

Two metal spheres of equal radius r are touching each other. The force

1.	Two metal spheres of equal radius r are touching each other. The force of attraction F between them is
A.	\[F\propto {{r}^{4}}\]
B.	\[F\propto {{r}^{6}}\]
C.	\[F\propto {{r}^{2}}\]
D.	\[F\propto \frac{1}{{{r}^{2}}}\]
Answer» B. \[F\propto {{r}^{6}}\]

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Two metal spheres of equal radius r are touching each other. The force of attraction F between them is

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