DiagramModerate2 marks
The following diagram shows a 60°, 30°, 90° glass prism of critical angle 42°. Copy the diagram and complete the path of incident ray AB emerging out of the prism marking the angle of incidence on each surface.
Topic: Refraction / total internal reflection
Previous-year question practice database
Answer
Solution diagram
Exam answer
Complete the path using refraction at the first surface and the given critical angle 42°. The ray finally emerges from the prism after the appropriate refraction/TIR sequence.
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