Question

what do you mean by Tyndall effect , Density​

Answer 1

The Tyndall effect is the scattering of light as a light beam passes through a colloid. The individual suspension particles scatter and reflect light, making the beam visible. ... The amount of scattering depends on the frequency of the light and density of the particles.

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Answer 2

Answer:

Tyndall effect is the phenomenon of scattering of light rays by the particles in the medium so that the parh of the light rays can be seen. Example:

1. Sunlight passing through a canopy of a dense forest gets scattered.
2. Light seen from the projector.
3. Light rays from the car head light during night times.

Density is mass per unit volume :)