NEET Physics Optical Instruments MCQ Question
What phenomenon occurs when the angle of incidence exceeds the critical angle in a medium?
Total internal reflection
Partial reflection
Refraction
Dispersion
Correct Answer
Detailed Explanation
When the angle of incidence exceeds the critical angle, the light is completely reflected back into the denser medium, a phenomenon known as total internal reflection, as described in the context of optical instruments.
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