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What is total internal reflection?



This question is part of Quiz questions over Refraction
Asked by Ruqayya, Last updated: Jan 05, 2020

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2 Answers

K. Myers

K. Myers, Blogger, Chicago

Answered Sep 20, 2018

In physics, when a ray of light is reflected back into, say, a lake or vessel of water, and is at a critical angle, the phenomenon occurs that the whole reflection is seen not just a partial one.

This critical angle on a water/air surface is normally 48.5 degrees, depending to some extent upon wavelength and therefore colour. It is the angle of incidence, the total internal reflection occurring above it.

 

denise_nambiar

Denise_nambiar

Answered Feb 20, 2018

Total internal reflection - When light strikes the boundary of a medium with a lower refractive index at an angle so great that there is no refracted rays occurs

 

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