👉 Light particles, also known as photons, are fundamental components of light and electromagnetic radiation. These particles are massless and travel at the speed of light in a vacuum, approximately 299,792 kilometers per second. Unlike matter particles, photons do not have an internal structure; they consist solely of energy. They exist in various forms, including gamma rays, X-rays, ultraviolet rays, visible light, infrared radiation, microwaves, and radio waves, each characterized by different wavelengths and energies. In a broader context, light particles are crucial in numerous physical phenomena, such as reflection, refraction, absorption, and emission, and they play a central role in optics, quantum mechanics, and many areas of physics and chemistry. Understanding light particles helps explain how light interacts with matter, enabling applications from solar energy to medical imaging and telecommunications.