Question

why rainbow have different seven colours?​

Answer 1

Heya

Here's your answer !!

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The rainbow is actually made up of millions of colours . All of them have different wavelengths .

Our human eyes can not process many of those colours because their wavelengths make them invisible to our eyes .

These seven colours Violet , Indigo, Blue , Green , Yellow , Orange and Red are the most prominent distinctly visible colours that are visible to the human eyes .

The other colours nearly look like these 7 colours to our human eyes .

So we think that rainbow is made up of 7 fixed colours .

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Hope it helps !!