Question

When Astronauts fly at higher altitude, the sky appears dark because ;

A

Scattering of light does not take place.

B

Scattering of light takes place.

C

Refraction of light takes place.

D

Dispersion of light takes place.

Medium
NTSE

Solution

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Correct option is A)

When sunlight passes through the atmosphere, the fine particles in the air scatter the blue color (shorter wavelengths) more strongly than red. The scattered blue light enters our eyes.
When Astronauts fly at higher altitudes, the sky appears dark because, at very high altitudes,  there is no atmosphere. So, there would not have been any scattering of light.

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