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Question
Draw a neat labelled ray diagram to show the total internal reflection of a ray of light normally incident on one face of a 30°, 90°, 60° prism.
Solution
At 30°, 90°, and 60° angles. The named ray diagram that follows illustrates the complete internal reflection of a light ray incident typically on one face of a 30°, 90°, or 60° prism.
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RELATED QUESTIONS
Copy the diagram given below and complete the path of the light ray till it emerges out of the prism. The critical angle of glass is 42°. In your diagram mark the angles wherever necessary.
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