To understand Scattering, let's do a Small Experiment

 

Let's take a Laser, and two glasses. One has Sugar Solution (Sugar + Water), and the other has just water.

While passing laser light through the glass, we observe that we cannot see the Ray of Light in both Sugar Solution and Water

Step 1 - Unable to see Ray of Light in Sugar Solution and Water.png

Now, in Water, we add milk and Stir it

Step 2 - Adding Milk and Stirring in 2nd Glass.png

We now observe that we can see the Ray of Light in the Milk + Water glass.

This is due to Scattering of Light

Step 3 - We know observe that Ray of Light is visible in the 2nd glass.png

The milk particles in the Second Glass are big enough to scatter light, and thus we see the Ray of Light in the 2nd Glass

Step 4 - This is due to Scattering of Light.png


Now, we can Define Scattering of Light

 

Definition of Scattering of Light

Scattering of light means throwing of light by particles in all possible directions

Scattering of light by particle - Teachoo.jpg

 

 

Did you notice that this Scattering of light is not done by all particles?

There are Sugar particles in the Sugar Solution, but they are very small... so they don't scatter light.

Whereas, the milk particles in Milk are big enough to Scatter light

 

Now, lets look at a few applications of Scattering of Light

  1. Class 10
  2. Chapter 11 Class 10 - Human Eye and Colourful World

About the Author

Davneet Singh's photo - Teacher, Computer Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.