Which of the following phenomena is the practical evidence for the existence of the continual motion of molecules.
- Transitional Motion
- Rotational Motion
-
Brownian Motion
- Oscillatory Motion
The correct answer is: C
Explanation
Brownian motion, also called Brownian movement, any of various physical phenomena in which some quantity is constantly undergoing small, random fluctuations.
If a number of particles subject to Brownian motion are present in a given medium and there is no preferred direction for the random oscillations, then over a period of time the particles will tend to be spread evenly throughout the medium.
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