Short answerEasy1 mark
4(i)
Out of the three rays (I, J, H) shown in the diagram, which ray will suffer Total Internal Reflection while inside the prism? (Critical angle of the prism is 42°.)
Topic: Critical angle and total internal reflection
Question wording verified against source paper
Answer
Solution diagram
Exam answer
Ray J.
Explanation
Its angle of incidence inside the prism is 60°, greater than the critical angle 42°.
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