ICSE Class 10 Answered
why does the refractionn does not happen in total internal reflection
Asked by aroranandini757 | 02 Sep, 2020, 19:50: PM
Expert Answer
Total internal reflection is the phenomenon when a ray of light travelling in a denser medium, is incident at the surface of a rarer medium such that the angle of incidence is greater than the critical angle for the pair of media, the ray is totally reflected back into the denser medium.
The two necessary conditions for total internal reflection are:
i.The light must travel from a denser medium to a rarer medium.
ii.The angle of incidence must be greater than the critical angle for the pair of media.
Due to this, the condition requied for refraction is not satisfied and thus the refraction do not occur.
Answered by Shiwani Sawant | 03 Sep, 2020, 12:02: PM
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Refraction of Light at Plane Surfaces
Refraction of Light at Plane Surfaces, Total Internal Reflection
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