The sky appears dark to passengers flying at very high altitudes mainly because :
Scattering of light is not enough at such heights.
There is no atmosphere at great height
The size of molecules is smaller than the wavelength of visible light.
The light gets scattered towards the earth.
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there is no atmosphere at high altitudes so refraction of light is not possible so it appears dark
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The sky appears dark to passengers flying at very high altitudes mainly because:
Scattering of light is not enough at such heights.
- The sky appears blue to us due to the scattering of light caused by the molecules in the atmosphere.
- As we go to high altitudes, the atmosphere gets rarer and rarer.
- Due to this scarcity of molecules, the scattering of light is very less.
- Since there is very less scattering, the sky appears dark at such high altitudes.
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