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

  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

Fog consists of tiny water droplets that scatter light in multiple directions through a process called the Tyndall effect. This scattering prevents light from traveling in straight lines to our eyes, reducing visibility. The droplets are not opaque (they are transparent), they do not significantly polarize light, and total internal reflection does not occur in this diffuse medium.

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