👉 Light, often perceived as a form of energy, is actually composed of particles known as photons. These particles are fundamental to understanding the nature of light and its interactions with matter. Photons are massless, electrically neutral entities that travel at the speed of light in a vacuum, carrying energy and momentum. Despite their lack of mass, photons exhibit both wave-like and particle-like properties, a duality that is central to quantum mechanics. When light interacts with objects, such as atoms or molecules, it can be absorbed, reflected, or transmitted, each process involving the transfer of energy via individual photons. This particle nature of light explains phenomena like the photoelectric effect, where light can eject electrons from a material, and underpins technologies ranging from solar panels to fiber optics, demonstrating that light's essence lies in these discrete, yet ubiquitous, particles.
