👉 Light particles, or photons, are fundamental entities that constitute light. They originate from various sources, such as stars, lamps, and electronic devices, and are produced when atoms or molecules absorb energy, causing electrons to jump to higher energy levels. When these excited electrons return to their ground state, they release energy in the form of photons. This process is governed by quantum mechanics and can be described by Maxwell's equations for classical electromagnetism. Photons travel at the speed of light in a vacuum, approximately 299,792 kilometers per second, and their properties, such as wavelength and frequency, determine the color of visible light. The interaction of light particles with matter—through reflection, refraction, absorption, or emission—underlies many optical phenomena and technological applications, from photosynthesis to fiber optics.
