Why is the sky blue?

Why the sky is blue? Well, some time or someday you must have had this question that why the sky is blue? Finally, your question is going to get the answer as simple as it can be.

The light from the sun looks white. But it is really made up of all the colors of the rainbow.

When white light shines through a prism, the light is separated into all colors. A prism is a specially shaped crystal.

What are the colors of the rainbow?

The colors of the rainbow are :

1. Violet
2. Indigo
3. Blue
4. Green
5. Yellow
6. Orange
7. Red

Now, why the sky is blue? It's because of all these color travels in their respective wavelengths. Each of them has a different wavelength. The shorter the wavelength would be the more it would be visible as simple as that.

When sunlight reaches the surface, the light of the sunlight is scattered in all directions, light is scattered with the help of gases and other molecules present in the environment. Blue light gets more scattered because of its shorter wavelength, as we discussed earlier the shorter the wavelength would be the more it would be visible. Therefore, we see a blue sky.

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Why the sky is blue, not violet?

Because the color Violet is considered to have a long wavelength that means the color with the long-wavelength is less visible. 

Why the sunsets are red?

At, sunset light must travel farther through the atmosphere before it gets to you, the more the light is scattered and reflected the dimmer the sun looks. And the color of the sun also changes, first to orange then to red because shorter wavelength color like blue is scattered and only long-wavelength colors like orange and red are only left to see.

  

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