The blue colour of the sky is mainly due to

Options

  • A. Reflection of sunlight by clouds
  • B. Scattering of shorter-wavelength light
  • C. Refraction of sunlight by water vapour
  • D. Absorption of blue light by the atmosphere
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

B. Scattering of shorter-wavelength light

Detailed Explanation

Air molecules scatter shorter-wavelength visible light more strongly, making blue light prominent in the sky.