Question

please answer this question

Answer 1

HE PLACED TWO PRISM IN OPPOSITE DIRECTION.

Answer 2

he show that the white light of sun contain 7 colour by the help of Newton disc
Newton disc = a disc like CD which contains 7colours on it . Newton regulate the disc very fastly then he observed that it seems like white light
according to this experiment Newton show that the white light of sun contain 7 colour on it

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