Which of the following statement(s)related toBrownian motion is/are incorrect?a)It is result of combined effect of chemical electrical and gravitational forces.b)Brownian speed increases if the vessels containing gas is shaken violently.c)Brownian motion is faster if the viscosity is low.d)Brownian speed increases if the pressure difference between particles and points of a container is increasedCorrect answer is option 'A,B,C'. Can you explain this answer?

Question

Answer

To and fro motion of colloidal particles in the solution is called Brownian motion.The size of the particles in colloidal solution is of the order of 104 em.This is a chemical and gravitational phenomenon not electrical phenomenon.Brownian motion is independent of the motion of vessel containing gas Displacement is Brownian motion is given by

Where η is viscosity.Thus .Brownian motion is inversely proportional to η hence Brownian motion increase on decreasing viscosity.

Answer

To and fro motion of colloidal particles in the solution is called Brownian motion.The size of the particles in colloidal solution is of the order of 104 em.This is a chemical and gravitational phenomenon not electrical phenomenon.Brownian motion is independent of the motion of vessel containing gas Displacement is Brownian motion is given by

Where η is viscosity.Thus .Brownian motion is inversely proportional to η hence Brownian motion increase on decreasing viscosity.

Answer

Incorrect Statements Related to Brownian Motion:

a) It is the result of the combined effect of chemical, electrical, and gravitational forces.
b) Brownian speed increases if the vessels containing gas are shaken violently.
c) Brownian motion is faster if the viscosity is low.

Explanation:

a) Incorrect Statement: It is the result of the combined effect of chemical, electrical, and gravitational forces.

Brownian motion is the random motion of particles suspended in a fluid (liquid or gas) resulting from their collisions with the fast-moving atoms or molecules in the fluid. It is not directly influenced by chemical, electrical, or gravitational forces. Instead, it is solely driven by thermal energy and the fluid's random molecular motion.

b) Incorrect Statement: Brownian speed increases if the vessels containing gas are shaken violently.

The speed of Brownian motion is not affected by shaking the vessel containing gas. Brownian motion is a result of the random thermal motion of the fluid molecules. The speed of the particles undergoing Brownian motion is determined by the temperature of the fluid and the viscosity of the medium, not by external factors such as shaking.

c) Incorrect Statement: Brownian motion is faster if the viscosity is low.

The speed of Brownian motion is actually higher in fluids with higher viscosity, not lower. Viscosity refers to the resistance of a fluid to flow. In highly viscous fluids, such as honey or syrup, the resistance to motion is higher, resulting in slower Brownian motion. Conversely, in fluids with lower viscosity, such as water or air, the resistance to motion is lower, allowing particles to move more freely and exhibit faster Brownian motion.

d) Correct Statement: Brownian speed increases if the pressure difference between particles and points of a container is increased.

The speed of Brownian motion is influenced by the pressure difference between particles and points within a container. When there is a pressure difference, particles tend to move from regions of higher pressure to lower pressure. This can result in increased particle movement and higher Brownian speeds.

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Uniform electric potential difference between two points (1,2,1) and (2,4,1) is 10 volt which of the following option is correct the minimum magnitude of electric field is 10 volt minimum magnitude of electric field is 54 maximum magnitude of electrical and maximum magnitude of electricity volt?

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