Asked by tusharparik • 25 days ago
Why is sky Orange ?
The sky can appear orange during sunrise and sunset due to a phenomenon called Rayleigh scattering. This effect scatters shorter wavelengths of light (blue and violet) more effectively than longer wavelengths (red, orange, and yellow).
Rayleigh scattering occurs when light is scattered by particles in a medium that are much smaller than the wavelength of the light. In the Earth's atmosphere, these particles are primarily nitrogen and oxygen molecules.
During sunrise and sunset, the sunlight has to travel through a greater distance in the atmosphere compared to midday. This longer path means that most of the blue light is scattered away before it reaches our eyes. The remaining light is dominated by the longer wavelengths (red, orange, and yellow), which are less scattered and can pass through the atmosphere more easily. This is why we see the sky as orange or red.
If you've ever seen a particularly vibrant sunset after a dusty day, it's because the dust particles in the air increased the scattering of blue light, allowing more orange and red light to reach your eyes.
Additional Information: The same principle explains why the sky appears blue during the day. Since the sun is higher in the sky, the blue light is scattered in all directions, making the sky appear blue to our eyes.
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