Why does the sky appear dark instead of | Class 10 Science Chapter The Human Eye and the Colourful World, The Human Eye and the Colourful World NCERT Solutions

Question:

Why does the sky appear dark instead of blue to an astronaut?

Answer:

When the sunlight passes through the atmosphere, the fine particles scatters in the atmospheric layers blue light will appear having shorter wavelength and the red light having the larger wavelength. The scattered blue light enters to our eyes if we see the sky from the earth.

The sky does not appear blue to an astronaut because there is no atmosphere in the space and hence the light does not scatter into the various colours as like when we see the colours of sun or sky from the earth. If there is no scattering occurs, the sky will look dark to the astronaut from the space.

 


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Welcome to the NCERT Solutions for Class 10 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 2 , Question 13: Why does the sky appear dark instead of blue to an astronaut?....