DiagramModerate2 marks
Copy the diagram given below and complete the path of light ray till it emerges out of the prism. The critical angle of glass is 42°. In your diagram mark the angles wherever necessary.
Topic: Refraction / total internal reflection
Previous-year question practice database
Answer
Exam answer
Complete the ray path using refraction and total internal reflection as required; mark the relevant incidence/reflection angles.
Explanation
Use c = 42° to decide whether TIR occurs at each internal face.
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