Multiple choice general knowledge

Although fog consists of fine drops of water, we cannot see clearly through it because..

  1. The light rays undergo total internal reflection in the drops

  2. Fine drops of water in fog polarize the light

  3. The fine drops are opaque to the light

  4. The drops scatter most of the light
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The tiny water droplets in fog scatter light in multiple directions through a phenomenon called Mie scattering. When light hits these small droplets (typically 1-20 micrometers in diameter), it gets scattered in all directions rather than traveling straight through to your eyes. Total internal reflection requires specific angle conditions that fog doesn't create, polarization is not the main effect, and water droplets are transparent, not opaque.

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