👉 Light, often perceived as a form of energy, is fundamentally composed of particles known as photons. These light particles are massless and exhibit both wave-like and particle-like properties, a duality that is central to quantum mechanics. Photons carry energy and momentum, and their interactions with matter—such as absorption, emission, or reflection—are the basis for various optical phenomena and technologies. While light itself is an electromagnetic wave, it consists of discrete packets of energy (photons) that travel through space at the speed of light. This particle nature of light explains phenomena like the photoelectric effect, where photons eject electrons from a material when they strike it with sufficient energy. Thus, understanding light as both a wave and a particle provides a comprehensive framework for explaining its behavior across different scales and applications, from the microscopic interactions within atoms to the macroscopic effects observed in everyday life.
