Question

(a) with the help of a ray diagram explain how the recombination of the spectrum of white light can be done ?
(b) state the infovence drawn by newton from this experiment ?

Answer 1

the recombination of spectrum into white light can be done by keeping 2 prisms in such a way that one is kept  erect and the other inverted close to each and then by passing white light through the two spectrums