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Q: A fine beam of light becomes visible when it enters a smoke filled room due to :
  • A. refraction of light
  • B. dispersion of light
  • C. reflection of light
  • D. scattering of light
Correct Answer: Option D - A fine beam of light becomes visible when it enters a smoke filled room due to the phenomena of scattering of light. Scattering of light takes place when beam of light falls upon very fine dust and smoke particles. These tiny particles spread the light in all directions, thus are see the visible beam of light.
D. A fine beam of light becomes visible when it enters a smoke filled room due to the phenomena of scattering of light. Scattering of light takes place when beam of light falls upon very fine dust and smoke particles. These tiny particles spread the light in all directions, thus are see the visible beam of light.

Explanations:

A fine beam of light becomes visible when it enters a smoke filled room due to the phenomena of scattering of light. Scattering of light takes place when beam of light falls upon very fine dust and smoke particles. These tiny particles spread the light in all directions, thus are see the visible beam of light.