Question

with the help of a simple experiment prove that white light is composed of seven colours​

Answer 1

Answer:

Explanation:MATERIALS REQUIRED - A pencil , a piece of cardboard

PROCEDURE-

1] Take a piece of cardboard and cut it into a circle .

2] Paste a sheet of white paper over and colour it according to

the seven colours of the rainbow (VIBGYOR).

3]Pierce a pencil in it . And revolve the disk very fast.

**THE SET UP IS LIKE SHOWN IN THIS FIGURE**

OBSERVATION- When the disk is rotated at a very high

speed, the seven colours give an appearance of white colour.

CONCLUSION - White light consists of seven colours.

Answer 2

Explanation:

1. thats all draw it in your note book