Previous year MCQs

General science UPPSC 2021 GS-I
Question

Diffusion of light in the atmosphere takes place due to:

Answer & Solution

Answer: (Detailed Solution Below)

Option B: Dust particles

Detailed Solution:

The correct answer is “Dust particles”.
Diffusion of light in the atmosphere takes place due to dust particles.

Diffusion is the net fluctuation of anything (for example, atoms, ions, molecules, energy) from a region of higher concentration to a region of lower concentration.

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