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The diagram alongside shows a beam of li...

The diagram alongside shows a beam of light (red + blue) incident normally on an equilateral triangular prism. If the critical angle for the material of prüsm is `60^@` for the light of red colour, complete the diagram showing the path of light of each colour emerging out of the prism. Mark in the diagram the angles wherever necessary.

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The completed ray diagram is shown below.
The light of red colour suffers refraction at angle of refraction `90^@`
The light of blue colour suffers total internal reflection.
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