Q13-112P - Chemistry: Molecular Nature Of Matter And Change

Question

In a movie theatre, you can see the beam of project light. What phenomenon does this exemplify? Why does it occur?

Step-by-Step Solution

Answer

The phenomenon is called “Tyndall effect”. It occurs due the scattering of light by dust particles presents in air.

Step 1: phenomenon of project light

In movie theatre, when we see the beam of project light, we can observe the phenomenon of “Tyndall effect”. This effect occurs due to the scattering of light coming from the projector by the particles of the dust present in the air and falling in the path of beam of light.

Step 2: Tyndall effect

Tyndall phenomenon, also known as the Tyndall effect, is the dispersion of a light beam by a medium containing minute suspended particle.