A photon is an elementary particle that constitutes the basic unit of electromagnetic radiation, including visible light. It is a particle without mass and without electric charge, but it carries energy and momentum.
Photons behave both as particles and waves, and their energy is directly related to the frequency of the electromagnetic radiation to which they belong.
Photons are responsible for transmitting light energy, enabling vision, and playing a fundamental role in processes such as photosynthesis, photography, and light-based communication technologies, such as fiber optics.
