Describe an activity to show that the colours of white light splitted by a glass prism can be recombined to get white light by another identical glass prism. Also draw ray diagram to show the recombination of the spectrum of white light.(All India - 2016)
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Explanation:AIM:To prove that white light consists of 7 colours
METERIALS REQUIRED :2 prism, a source of white light
PROCEDURE:First take the source of white light and put it in front of the prism.Then take second prism and put it upside down and make sure that the second prism should be in a line to the second one.
OBSERVATION:When the light enters the first prism it turns into 7 diffrent colours ie , Violet ,Indigo ,Blue ,Green ,Yellow ,Orange ,Red(this is also know as the spectrum) .But when the light enters the second prism the 7 colours turn back into the white light.
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