👉 Light particles, or photons, are fundamental constituents of electromagnetic radiation and are considered the primary carriers of light. These particles are massless and exhibit both wave-like and particle-like properties, a concept known as wave-particle duality. Photons are created and emitted when atoms or molecules transition between energy levels, absorbing or releasing energy in discrete packets proportional to their frequency. This quantization of light energy is described by Planck's equation, which laid the foundation for quantum mechanics. Photons travel at the speed of light in a vacuum, approximately 299,792 kilometers per second, and their behavior is governed by Maxwell's equations. Despite their lack of mass, photons can exert forces, such as pressure from sunlight (known as air pressure), and they play crucial roles in various phenomena, from the photoelectric effect to the structure of atoms and the functioning of optical devices.
