Why is the colour of the clear sky blue?

  • A
    Due to reflection of light by the atmosphere.
  • B
    Due to scattering of light by atmospheric particles.
  • C
    Due to refraction of light by the atmosphere.
  • D
    Due to dispersion of light by water droplets.

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Similar Questions

Explain the following terms connected with the eye:
$(i)$ Ciliary muscles
$(ii)$ Accommodation
$(iii)$ Blind spot.

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

$(i)$ What is meant by dispersion of white light? Draw a diagram to show the dispersion of white light by a glass prism.
$(ii)$ Light of two colours $A$ and $B$ pass through a prism. $A$ deviates more than $B$ from its path of incidence. Which colour has a higher speed in the prism?

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After passing through the pupil, light rays fall on which part of the eye and undergo refraction?

Name the part of the human eye that helps in changing the focal length of the eye lens.

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