The Human Eye and the Colourful World · Class 10 · CBSE Science
The phenomenon responsible for the majestic blue colour of clear sky is:
Practice question from The Human Eye and the Colourful World (Class 10 · CBSE Science), with the correct answer and a step-by-step solution.
medium · MCQ · Q-442CE6
The phenomenon responsible for the majestic blue colour of clear sky is:
- A.Reflection of light by dust particles
- B.Refraction of light through water droplets
- C.Dispersion of light by air molecules
- D.Scattering of light by atmospheric moleculesCorrect answer
Solution
The molecules of air and other fine particles in the atmosphere have a size smaller than the wavelength of visible light. These are more effective in scattering light of shorter wavelengths at the blue end than light of longer wavelengths at the red end, giving the sky its blue colour.
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