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## Class 10 Physics (India)

### Course: Class 10 Physics (India)>Unit 2

Lesson 8: Scattering of light and Tyndall effect

# Scattering of light & Tyndall effect

Let's explore the scattering of light with the help of an experiment. When we shine a laser through a glass of water with few drops of milk, we can see the path of light. This effect is often called the Tyndall effect.  Created by Mahesh Shenoy.

## Want to join the conversation?

• At if we add more sugar to the solution to make the particles denser, will they scatter more light significantly??
• Milk contains white coloured particles in which *red in dominant over white.* What if we take a solution containing black coloured particles in which *black is dominant over red. Will it show the laser beam??*
• I'm not very sure, but maybe the black particles will make the solution less transparent and more opaque. So, technically, it shouldn't show the beam of light.

Nice question, by the way.
• How does the light pass through the milk molecule? How it is scatter light in all directions??
• Can we keep the dust particles on the surface of water using the property of surface tension and then use the phenomenon of scattering of light?
• shouldn't the light that is scattered hit other particles that are near by and the latter get scattered as well and hit other particles until the glass light up not only the trajectory of the light beam?
• If the particles are really small won't diffraction take place?
• How light that is not scattered from an atom transmit further ? does it absorbed from atom and then reemmited in the same direction ?
• So, how large should a body be in order to reflect light?