👉 Light particles, or photons, are fundamental units of electromagnetic radiation that travel through space at a constant speed. When these particles interact with matter, they can be absorbed, reflected, or transmitted. In everyday phenomena, such as the blue color of the sky, light particles scatter off molecules in the atmosphere, with shorter wavelengths (like blue) being scattered more efficiently than longer wavelengths (like red). This scattering process, known as Rayleigh scattering, gives the sky its characteristic blue hue during the day. Additionally, when light particles strike objects like water droplets or dust, they can be absorbed or reflected, leading to the formation of rainbows or the glint of sunlight off surfaces. At a deeper level, photons also play a crucial role in the photoelectric effect, where they can eject electrons from materials, a principle fundamental to solar cells and various electronic devices.
