Question

Which Force Does Not Follow Inverse Square Law

Answer 1

Answer:

Nuclear Force... both strong and weak.

Explanation:

Neither the weak nor the strong nuclear force have infinite range, but for very different reasons: The mediators of the weak force are massive and the effective potential they produce is additionally (exponentially) suppressed, so that the weak force flux diminishes very fast with distance. The strong interaction is a bit more complicated, since the term “strong interaction” is used for two different things:

(1) The (attractive) force between two quarks actually grows with distance, and at around 10−15 m the energy invested in separating the quarks becomes enough to create a quark-antiquark pair, and which point one is no longer separating the two original quarks.

(2) The effective (residual, van der Waals-like) force between two hadrons (about 10−15 m-sized objects) obeys a force-law that is (roughly) also exponentially suppressed like the one for weak interactions and so quickly dwindles over distances not much larger than the size of the hadrons themselves. The fact that the size of the hadrons is not negligible at such distances additionally complicates the force law.

Hope this helps.