You may have noticed that light emitting from the headlights of a vehicle on a rainy
night. They are known as light beams. So
let's try an activity and understand how it happens.
Activity:
Raw materials; A torch, A white color paper, A comb with thin teeth
 |
Method:
- Choose a desk kept in a dark place and keep the comb as shown in the figure on the white paper, perpendicular to the desk and the teeth directed downwards.
- Direct the torch towards the comb and light it up.
- You will be able to see the beam of light emitted by the torch and the light ray which travels through the teeth of the comb.
- Mark those rays on the white paper with a pencil.
- You will see that the rays drawn by you are straight lines. They are considered light rays.
No comments:
Post a Comment