👉 Light particles, or photons, are fundamental entities that constitute light. These particles are massless and exhibit both wave-like and particle-like properties, a concept central to quantum mechanics. Incident light particles originate from sources such as stars, lamps, or the sun, traveling through space at an incredibly high speed, approximately 299,792 kilometers per second. When these photons encounter matter, they can interact in various ways—absorbing energy, being scattered, or even being emitted by atoms and molecules. This interaction is crucial for phenomena like photosynthesis, where light energy is converted into chemical energy, and it plays a key role in the functioning of optical devices like cameras and telescopes. Despite their lack of mass, photons travel at the speed of light and have no electric charge, making them unique in their behavior and importance across multiple scientific disciplines.