Why Does the Sky Appear Blue?

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  • Thread starter Thread starter DoctorReynaldo
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SUMMARY

The sky appears blue due to Rayleigh scattering, a phenomenon where light scattering is inversely proportional to the frequency of the light. Blue light, having a shorter wavelength, is scattered more effectively than red light, which has a longer wavelength. This scattering causes the blue color to dominate the sky during the day.

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  • Understanding of light frequency and wavelength
  • Basic knowledge of scattering phenomena
  • Familiarity with atmospheric physics
  • Concept of color perception in human vision
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Students of physics, educators explaining optical phenomena, and anyone interested in atmospheric science and color perception.

DoctorReynaldo
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Simple question...always wondered why it's blue. :rolleyes:
 
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Because of "Rayleigh scattering".

i.e., the fact that scattering of light depends on its frequency. Blue light is scattered much more that red light.
 

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