Question

when white light enters into a glass prism it emerged as a spectrum of seven colour give saientific reason​

Answer 1

Explanation:

The shorter the wavelength of the light, the more it is refracted. As a result, red light is refracted the least and violet light is refracted the most - causing the coloured light to spread out to form a spectrum. This is called dispersion.

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Answer 2

Answer:

This is called recombination of light. In a glass slab, the edges where the refraction of light takes place are PARALLEL to each other, thus all the seven colours of the light are refracted by the same amount and by the same angle at both the surfaces