Question

Choose the correct option and fill in the blanks
The zigzag movement of tiny microscopic particle is called the________________________(Brownian movement/ Dalton movement).

Answer 1

Brownian motion: Zig-zag motion (in a very irregular way) of particles is known as Brownian motion.

1. The Brownian movement also called Brownian motion is defined as the uncontrolled or erratic movement of particles in a fluid due to their constant collision with other fast-moving molecules.
2. Usually, the random movement of a particle is observed to be stronger in smaller-sized particles, in a less viscous liquid, and at a higher temperature. These are also some of the factors that affect the movement of particles in a fluid.
3. One of the most common examples of Brownian motion is diffusion. Cases, where pollutants are diffused in air or calcium diffused in bones can be considered examples of this effect.

Hence, the zigzag movement of tiny microscopic particles is called the Brownian motion.