tyndall effect, brownian movement, colour OF colloid, coagulation / flocculation, hardy schulze rule, protection OF colloid and gold number

What causes Brownian movement in a colloidal solution?

Electrical Properties, Electrophoresis, Electro Osmosis || Charge on Colloidal Particles, Electrical Double Layer || Coagulation OF Sol (Coagulating value, Hardy-Schulze Rule)|| Protection OF Colloid (Gold Number), Emulsion, Water in Oil, Oil in Water

Tyndal effect in a colloid is due to

Which type of property is the Brownian movement of colloidal sol.?

Which type of property is the Brownian movement of colloidal sol?