6 A right prism is to be made by selecting a proper material

Last updated: 6/4/2023

6 A right prism is to be made by selecting a proper material and the angles A and B BSA as shown in figure 18 W5a It is desired that a ray of light incident normally on AB emerges parallel to the incident direction after two total internal reflections a What should be the minimum refractive index u for this to be possible b For u 5 3 is it possible to achieve this with the angle A equal to 60 degrees