👉 Light particles, also known as photons, are fundamental components of electromagnetic radiation and are characterized by their massless nature and extremely small size. These particles are the quanta of light and energy, meaning they carry discrete packets of energy proportional to their frequency, as described by Planck's relation. Light particles travel at the speed of light in a vacuum, approximately 299,792 kilometers per second, and exhibit both wave-like and particle-like properties, a duality that is central to quantum mechanics. Their behavior can be explained through two primary models: the wave model, which describes light as oscillating electric and magnetic fields, and the particle model, which views light as discrete packets of energy. Interactions between light particles and matter, such as absorption, emission, and scattering, are governed by fundamental physical laws like the photoelectric effect and Compton scattering, illustrating their pivotal role in phenomena ranging from photosynthesis to solar energy conversion.
