Answers

2016-03-29T21:49:26+05:30
When you place a second identical  prism in an inverted position with respect to the first prism, then all the colors of the spectrum will pass through the second prism. Then as a result a beam of white light will emerge from the second prism.
This what Issac Newton conducted experiments about.
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2016-03-29T23:03:22+05:30
Again a beam of white light will be obtained
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