👉 Light particles, also known as photons, are fundamental entities that make up electromagnetic radiation, including visible light. These particles are massless and travel at an incredibly high speed, approximately 299,792 kilometers per second, in a vacuum. Photons are the quanta of light energy, meaning they carry discrete packets of energy proportional to their frequency, as described by Planck's equation. Unlike matter particles, photons do not have charge or mass in the classical sense; they are purely energy carriers. This unique nature allows them to exhibit both wave-like and particle-like properties, a phenomenon known as wave-particle duality. In everyday life, we perceive light as a form of electromagnetic radiation, but understanding it at a quantum level reveals its particle nature, essential for explaining phenomena such as the photoelectric effect and the behavior of light in various media.
