NEET Physics Total Internal Reflection MCQ Question
A ray of light is incident on a prism ABC in which ∠A = 60° as shown in the figure. The ray will:
go straight undeviated
just graze along the face AC
refract and go out of the prism
undergo total internal reflection
Correct Answer
Detailed Explanation
Total internal reflection occurs when the angle of incidence is greater than the critical angle. Given the geometry of the prism, the light will undergo total internal reflection.
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