Light is electromagnetic radiation that travels in the form of waves. Its reflection illuminates the
surfaces allowing the human eye the ability to visualize objects and distinguish colors.

It is formed by massless elementary particles (photons), whose properties in accordance with the wave-particle duality explain the characteristics of its physical behavior.

Light is a sine wave, with a wavelength of 400nm to 700nm, intensity in lumen/W, frequency in Hertz.

Optics is the branch of physics that studies the behavior of light, its characteristics and its different manifestations.