Figure shows a mixture of blue, green and red coloured rays incident normally on a right angled prism. The critical angles of the material of the prism for red, green and blue are 46^ , 44^ and 43^ respectively. The arrangement will separat

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Figure shows a mixture of blue, green and red coloured rays incident normally on a right angled prism. The critical angles of the material of the prism for red, green and blue are 46^ , 44^ and 43^ respectively. The arrangement will separate

Quantrex Academy · Accepted Answer

Correct answer: A. red colour from blue and green

Condition of no emergence is A > C As angle of prism is greater than critical angle for blue and green coloured rays, total internal reflection will take place at second surface and hence the arrangement will separate red colour from blue and green.

Figure shows a mixture of blue, green and red coloured rays incident normally on a right angled prism. The critical angles of the material of the prism for red, green and blue are 46^ , 44^ and 43^ respectively. The arrangement will separate

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