Question

can any one answer me this question​

Answer 1

Answer:

Robert Brown said that random movement of particles is called Brownian motion

Answer 2

Answer:

Brownian motion or pedesis is the random motion of particles suspended in a fluid resulting from their collision with the fast-moving molecules in the fluid. This pattern of motion typically alternates random fluctuations in a particle's position inside a fluid sub-domain with a relocation to another sub-domain.

Molecules in air are constantly moving and hitting the dust particles. Because the molecules are moving in many directions, they collide with the dust particles from different directions. This action causes the darting motion of the dust that you observe. Atoms and molecules are always in motion..

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