Particle theory of light

The Particle Theory of Light, also known as the photon theory, posits that light is made up of tiny particles called photons. These photons travel in waves but can be thought of as discrete packets of energy. When light interacts with matter, such as in shining a flashlight or the way we see colors, it behaves like a stream of these particles. This theory helps explain phenomena like the photoelectric effect, where light can eject electrons from materials. Combined with wave theory, this particle nature of light is essential for understanding a wide range of optical and quantum behaviors.