Question

I) What is Tyndall effect?
ii) Draw a figure which shows the arrangement for observing the phenomenon
of scattering of light in laboratory?
iii) What colours would you observe in the experiment? Why?​

Answer 1

Answer:

What is Tyndall effect?

Tyndall effect, also called Tyndall phenomenon, scattering of a beam of light by a medium containing small suspended particles—e.g., smoke or dust in a room, which makes visible a light beam entering a window.

What colours would you observe in the experiment? Why?​

When the torch is put to the milk solution and the light is shone through it, the light is scattered. The torch produces a range of different wavelengths of light hence it looks white.  

Each wavelength is scattered differently, this separates the different wavelengths, and hence the colours of the light are separated. When we look through the milk mix from different angles we see those colours.