Explain with a diagram why the sky appears blue.
WBBSE
Class X
Physical Science
Light – Reflection and Refraction
02 Mark
2025
Sunlight consists of seven colours. As it passes through the Earth’s atmosphere, the molecules of air scatter light.
Since blue light has a shorter wavelength, it is scattered much more than the other colours. As a result, blue light reaches our eyes from all directions, making the sky appear blue.
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