👉 Light particles, often referred to as photons, are fundamental entities that constitute electromagnetic radiation. These particles are massless and travel at the speed of light, exhibiting both wave-like and particle-like properties, a duality central to quantum mechanics. Photons are the quanta of light energy, meaning they carry discrete packets of energy proportional to their frequency, as described by Planck's equation (E = hν). In essence, light particles are the smallest units of electromagnetic energy that can interact with matter, enabling phenomena such as photosynthesis, vision, and the transmission of information through fiber optics. Their existence underpins our understanding of light's role in the universe, from the visible spectrum to the cosmic microwave background, and they are pivotal in both classical and quantum physics.