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Q: The colour of the clear sky is blue due to _________of light by particles in the atmosphere of size _________than the wavelength of visible light.
  • A. refraction, larger
  • B. scattering, smaller
  • C. scattering, larger
  • D. refraction, smaller
Correct Answer: Option B - The colour of clear sky is blue due to scattering of light by particle in the atmosphere of smaller size than the wavelength of visible light. Blue is scattered more than other colours because it travels as shorter and smaller waves.
B. The colour of clear sky is blue due to scattering of light by particle in the atmosphere of smaller size than the wavelength of visible light. Blue is scattered more than other colours because it travels as shorter and smaller waves.

Explanations:

The colour of clear sky is blue due to scattering of light by particle in the atmosphere of smaller size than the wavelength of visible light. Blue is scattered more than other colours because it travels as shorter and smaller waves.