What is optics?

Optics is the branch of physics that deals with the behavior of light and its interaction with matter. It includes the study of the fundamental principles of light, such as reflection, refraction, diffraction, and interference, as well as the applications of light in various fields, such as telescopes, microscopes, cameras, lasers, and fiber optics. Optics also helps us understand vision and how the eye works, as well as the properties of lenses and other optical devices. It is a crucial field in modern technology, with numerous applications in medicine, telecommunications, and materials science.