Q26 of 216 Page 465

In the given figure, a narrow beam of white light is shown to pass through a triangular glass prism. After passing through the prism it produces a spectrum on a screen.


Which two positions correspond closely to the colour of


i. egg yolk,


ii. ladyfinger?

The splitting of light into its component colours is called dispersion.


The dispersion of white light by prism is as shown in the diagram



The colour of yolk of an egg is somewhat similar to the colour at the position 5 and the colour of a ladyfinger is somewhat similar to the colour at the position 6.


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