WAEC Physics 2012 Objective — Question 27
Question 27 of 50 from the West African Examinations Council (WAEC) Physics 2012 Objective paper, with the correct answer and a full explanation.
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Total internal reflection occurs in an optical prism when light rays
- A. A. travel from the prism into an optically denser medium B are incident in the prism at an angle greater than the critical angle
- B. BCorrect
Explanation
Total internal reflection occurs in an optical prism when light rays are incident in the prism at an angle greater than the critical angle.
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