👉 Light particles, often referred to as photons, are fundamental constituents of electromagnetic radiation, which includes everything from sunlight to artificial light sources like LEDs and lasers. These particles are incredibly small, far smaller than any atom or molecule, and they travel at the speed of light in a vacuum, approximately 299,792 kilometers per second. Photons are massless and have no charge, though they can exhibit both wave-like and particle-like properties depending on the context of their interaction with matter. This dual nature is a cornerstone of quantum mechanics, where light is understood as both a wave and a stream of discrete energy packets. These particles carry energy and momentum, and their interactions with matter—such as absorption, emission, and reflection—are crucial for understanding phenomena ranging from photosynthesis to the functioning of solar panels and optical fibers.
