Which of the following is true regarding magnetic repulsion?

The principle of magnetic repulsion states that like poles of magnets—those that are both north or both south—will repel each other when brought close together. This repulsion increases as the two like poles are moved closer to each other. Essentially, the closer the similar poles are, the stronger the magnetic force of repulsion becomes. This relationship reflects the nature of magnetic fields, where the force exerted by magnets is dependent on the distance between their poles.

In contrast, the other options do not correctly describe the nature of magnetic repulsion. For example, while attraction does diminish with distance, the repulsion between like poles grows stronger as they come closer together, which is precisely why option C is the true statement. Additionally, magnetic repulsion is not limited to very close distances (as stated in the first option) and is indeed as strong as magnetic attraction, contrary to the second option. Lastly, magnetic repulsion may not be observable in all magnets, particularly when dealing with specific arrangements or types of magnets that do not generate enough magnetic force for such interactions to be apparent.