Question

what is spectrum? how can you prove that white light is constituent of sevan colours​

Answer 1

The band of colours obtained on a screen on passing white light through a prism is called spectrum. The various colours seen are Violet, Indigo, Blue, Green, Yellow, Orange and Red.

We can show that white light is composed of a number of colours by passing it through a transparent glass prism. A glass prism is a triangular refracting surface. When a beam of white light enters the prism, the light splits, forming a band of seven colours on a screen placed on the other side of the prism.

Answer 2

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