Question

Give an activity to prove that white light is made of seven colours. Draw diagram also.

only with Newton's disc....​

Answer 1

Answer:

This gives a narrow beam of white light. Now, take a glass prism and allow the light from the slit to fall on one of its faces as shown in figure. Turn the prism slowly until the light that comes out of it appears on a nearby screen. We will observe that sunlight has split into seven colours.

Explanation:

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