<transcript><audio_23>internal reflection that is the blue ray we achieve the total internal reflection okay when the angle of incidence this is the angle of incidence from blue ray to this normal is greater than critical angle</transcript><transcript><audio_24>the ray will be reflect back into the same medium that is the denser medium so first light is traveling from denser medium and it will be reflect back into the same denser medium this phenomena is called as a total</transcript><transcript><audio_25>internal reflection and this is the basic concept for the or the basic principle of the fiber optics through which the light travels for a very long distance</transcript> internal reflection that is the blue ray we achieve the total internal reflection okay when the angle of incidence this is the angle of incidence from blue ray to this normal is greater than critical angle the ray will be reflect back into the same medium that is the denser medium so first light is traveling from denser medium and it will be reflect back into the same denser medium this phenomena is called as a total internal reflection and this is the basic concept for the or the basic principle of the fiber optics through which the light travels for a very long distance
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