What is optics and electromagnetism?

Optics is the branch of physics that studies the behavior and properties of light, including its interactions with matter and the formation of images. It encompasses phenomena such as reflection, refraction, and diffraction. Electromagnetism, on the other hand, is the field of physics that deals with the interactions between electric charges and magnetic fields, described by Maxwell's equations. Together, these two disciplines explain a wide range of phenomena, from the behavior of lenses and mirrors in optics to the principles underlying electromagnetic waves, including visible light.