User:Shakeera./sandbox

What makes sun to appear as red during sunset? It is clear that rays has to travel longer distance during sunset as sun is close to the horizon.In this travelling most of the shorter wavelength light (violet and blue) gets scattered and the longer wavelength light (red and orange) is least scattered and reaches our eyes. This is from Rayliegh's law. It states that intensity of the scattered light is inversely proportional to the fourth power of the wavelength. Therefore the light with high intensity will get deviate by the air molecules, where as the light with less intensity can easily penetrate through the air molecules and reaches our eyes and turns the sun into red during sunset.