A) A light ray is incident normally on one face of a triangular prism of glass as shown below. What is the minimumindex of refraction of the glass if the light ray is to be totally internally reflected at the slanted surface as shown.Tip: Angles of incidence and reflection are measured relative to the normal to the interface.B) In the index of refraction of the glass is too small some light will be reflected and some light will be refracted at theslanted interface. Which of the numbered suggested refracted rays in the sketch below best represents the actualpath of the refracted ray at this interface? Briefly justify your answer.air11glass45"air450

We will use Snell's law of refraction to answer the questions. The steps are as follows

Answered: A) A light ray is incident normally on…

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