Tamilnadu BoardEnglish MediumSTD 9SciencePHYSICS CH6 Light2 Marks
Question
What is total internal reflection?
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Answer
Total internal reflection: When the angle of incidence exceeds the value of the critical angle, the refracted ray is not possible, since r > 90°, the ray is totally reflected back to the same medium (denser medium). This is called as total internal reflection.
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