👉 Light particles, often referred to as photons, are fundamental constituents of light and other forms of electromagnetic radiation. These particles are incredibly small, with masses that are negligible compared to those of atoms or subatomic particles. Despite their minuscule size, photons possess unique properties: they travel at the speed of light in a vacuum and carry energy proportional to their frequency, as described by Planck's equation. This dual nature—exhibiting both particle-like and wave-like behavior—makes photons central to quantum mechanics. They do not have charge or mass like electrons, but their interactions with matter, such as absorption and emission, are crucial in phenomena ranging from photosynthesis to the operation of solar panels. Photons are essential for communication technologies, including fiber optics and lasers, and play a key role in understanding the universe through astronomy and cosmology.
