Q. 16 C4.8( 5 Votes )
Why do different coloured rays deviate differently in a prism?
Different color have different speed of travelling so different color deviates differently in prism.
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A beam of white light falling on a glass prism gets split up into seven colours marked 1 to 7 as shown in the diagram.
A student makes the following statements about the spectrum observed on the screen.
i. The colours at positions marked 3 and 5 are similar to the colour of the sky and the core of a hard boiled egg respectively.
Is the above statement made by the student correct or incorrect? Justify.
ii. Which two positions correspond closely to the colour of
(a) a solution of potassium permanganate?
(b) ‘danger’ or stop signal lights?
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