Answer:
The effect is A) Tyndall effect.
Explanation:
The phenomenon which describes about the scattering of light by the colloidal solution, called as Tyndall effect. The separate particles present in the colloid, scatter and reflect the light which makes the rays visible.
The phenomenon was first described by John Tyndall due to which the phenomenon is called as Tyndall effect. The light with longer wavelength is highly transmitted and the light with less wavelength is absorbed in this effect. This effect is observed in all the transmitting medium which has tiny particles in it.
