Question

What is Total Internal Reflection??​

Answer 1

➡When a Ray of light passes from denser medium to a rare medium because the ray is at an angle greater than the critical angle then the ray gets reflected back in the same medium, this is known as total internal reflection

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Answer 2

Hey there! here is ur answer! Hope it helps!

Total internal reflection is the complete reflection of a light ray reaching an interface with a less dense medium when the angle of incidence exceeds the critical angle.

u can visualise this concept better by going thru the attached photo