👉 Light particles, often referred to as photons, are fundamental entities that constitute light and other forms of electromagnetic radiation. These particles are massless and exhibit both wave-like and particle-like properties, a duality that is central to quantum mechanics. Photons are the smallest units of light energy and travel at an incredibly high speed, approximately 299,792 kilometers per second in a vacuum. They carry energy proportional to their frequency, as described by Planck's equation (E = hν), where E is energy, h is Planck's constant, and ν is the frequency of the light. Unlike matter particles, photons do not have a rest mass; they are purely energy carriers. This particle nature of light explains phenomena such as the photoelectric effect, where light can eject electrons from a material, and it underpins technologies like lasers and fiber optics. Despite their lack of mass, photons interact with matter through electromagnetic forces, enabling processes like absorption, reflection, and refraction.
