Question

What is the cause of dispersion through a glass prism?

Answer 1

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Answer 2

light is made up of different colour. each colour Travels at his oven speed inside a Prism. due to this different colours of light bend through different angles with respect to the incident rays. as they pass through a Prism the red light bends the least while the voilet the most. thus the ray of each colour image along different parks and has become distinct. it is the band of distinct colours that we seen in a spectrum..