Why is the sky blue ?

Answer 1

It's due to a phenomenon called Rayleigh scattering. When light encounters particles much smaller than the wavelength of light, the light scatters. Atmospheric gas is an enormous resevoir of such particles. Short wavelengths scatter the most effectively, and blue has a short wavelength, so the blue light scatters and appears to fill the sky. Note that violet has a shorter wavelength than blue, but the human eye is not very good at seeing violet, so blue appears to dominate instead.

Answer 2

The sky is blue partly because air scatters short-wavelength light in preference to longer wavelengths. Combined, these effects scatter (bend away in all directions) some short, blue light waves while allowing almost all longer, red light waves to pass straight through. When we look toward a part of the sky not near the sun, the blue color we see is blue light waves scattered down toward us from the white sunlight passing through the air overhead. Near sunrise and sunset, most of the light we see comes in nearly tangent to the Earth's surface, so that the light's path through the atmosphere is so long that much of the blue and even yellow light is scattered out, leaving the sun rays and the clouds it illuminates red.

Scattering and absorption are major causes of the attenuation of radiation by the atmosphere. Scattering varies as a function of the ratio of the particle diameter to the wavelength of the radiation. When this ratio is less than about one-tenth, Rayleigh scattering occurs in which the scattering coefficient varies inversely as the fourth power of the wavelength. At larger values of the ratio of particle diameter to wavelength, the scattering varies in a complex fashion described, for spherical particles, by the Mie theory; at a ratio of the order of 10, the laws of geometric optics begin to apply.

Answer 3

We answerd this question already, dear. Click on the link .

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Because sunlight is "scattered" when it passes through the air. White light is actually made up of every color mixed together. Blue light has the shortest wavelenght, so it is scattered more (In other words, the color blue comes into your eye from every direction). Since you see blue the most, you think that the sky is blue because this is the color that your eye sees the most of.

Answer 4

Why is the sky blue?
Because so are you.

Answer 5

well it is the result of seconday emisson flouroscophy, from high energy uv and gamma striking the ozone layers, causing it to give off the blue glow. very simular to when you use a uv lamp, on certain materials, and cause them give off different, wavelength colors of light. and is the very, same principal, of secondary emission, as with the ozone layer.

Answer 6

the atmosphere is actually what you are seeing when you look up and see the color blue.

Answer 7

its the reflection of the sun off the water into the atmosphere

Answer 8

Two words. water and light

Answer 9

If you'd typed that question into your search engine, you could easily have found your answer...give it a try...

Learning to do your own research will be of great benefit to you :)

Answer 10

the reflection off the sun and the water!