👉 Light particles, also known as photons, are fundamental entities that make up light. These particles are massless and exhibit both wave-like and particle-like properties, a concept central to quantum mechanics. Photons are the smallest units of light energy and travel at an incredibly fast speed, approximately 299,792 kilometers per second in a vacuum. They carry energy and momentum, which can be transferred through electromagnetic interactions, such as those between atoms and molecules. This dual nature of light—both particle and wave—is described by quantum field theory, where photons are excitations of the electromagnetic field. In essence, light particles are the building blocks of light, enabling phenomena like reflection, refraction, and absorption, and they play a crucial role in various scientific and technological applications, from solar energy to fiber optics.