COMEDK · Physics · 25. Ray Optics
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 \(46^{\circ}, 44^{\circ}\) and \(43^{\circ}\), respectively. The arrangement will separate
- A red colour from blue and green
- B blue colour from red and green
- C green colour from red and blue
- D All the three colours
Answer & Solution
Correct Answer
(A) red colour from blue and green
Step-by-step Solution
Detailed explanation
The given situation is shown below Since, critical angles for blue colour and green colour are less than angle of incidence, hence total internal reflection occurs for blue and green colours of light. Again, since critical angle for red colour is greater than angle of incidence…
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