Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Anonymous
Anonymous asked in Science & MathematicsEarth Sciences & Geology · 1 decade ago

Why sky is blue?????

12 Answers

Relevance
  • ?
    Lv 5
    1 decade ago
    Favorite Answer

    The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by the air.

    However, much of the shorter wavelength light is absorbed by the gas molecules. The absorbed blue light is then radiated in different directions. It gets scattered all around the sky. Whichever direction you look, some of this scattered blue light reaches you. Since you see the blue light from everywhere overhead, the sky looks blue.

    As you look closer to the horizon, the sky appears much paler in color. To reach you, the scattered blue light must pass through more air. Some of it gets scattered away again in other directions. Less blue light reaches your eyes. The color of the sky near the horizon appears paler or white.

    Source(s): www.sciencemadesimple.com x
  • 1 decade ago

    Light from the sky is a result of the scattering of sunlight, which results in a blue color perceived by the human eye. On a sunny day Rayleigh Scattering gives the sky a blue gradient — dark in the zenith, light near the horizon. Light that comes in from overhead encounters 1/38th of the air mass that light coming along a horizon path encounters. So, fewer particles scatter the zenith sunbeam, and therefore the light remains a darker blue.

    The sky can turn a multitude of colors such as red, orange and yellow (especially near sunset or sunrise) and black at night. Scattering effects also partially polarize light from the sky.

    Sky luminance distribution models have been recommended by the International Commission on Illumination (CIE) for the design of daylighting schemes. Recent developments relate to “all sky models” for modelling sky luminance under weather conditions ranging from clear sky to overcast.

  • 1 decade ago

    The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by the air.

    However, much of the shorter wavelength light is absorbed by the gas molecules. The absorbed blue light is then radiated in different directions. It gets scattered all around the sky. Whichever direction you look, some of this scattered blue light reaches you. Since you see the blue light from everywhere overhead, the sky looks blue.

  • Anonymous
    1 decade ago

    The sky is blue because the gases in Earth's atmosphere cause light to undergo raleigh scattering. Light bends (refracts) off of atmospheric particles and gases so that in direct sunlight, it appears blue. During sunset, the angle at which the sunlight hits the atmosphere makes the sky appear red.

  • Anonymous
    1 decade ago

    When sunlight enters our atmosphere it collides with the oxygen and nitrogen atoms. The color with the shorter wavelength is scattered more by this collision. Because violet and blue are the shortest wavelengths the sky appears to be violet / blue. But because our eyes are more sensitive to blue light than they are violet light, we perceive the sky as blue.

  • 1 decade ago

    The sky reflects on the ocean.

  • 1 decade ago

    becoz blue has shorter wave length compared to red n other colour in the spectrum it is been scattered than red yellow n other colours....

    hence the sky looks blue....

  • Anonymous
    1 decade ago

    The color of the sky is a reflection of the ocean.

  • 1 decade ago

    because of the reflaction of the ocean

  • 5 years ago

    because it is due to raylight scattering

Still have questions? Get your answers by asking now.