The refractive index of a transparent material can be determined by measuring the critical angle when the solid is in air. If 9c= 41.9 what ijs Elbe index of refraction of the material? Previous Tries A light ray strikes this material from air) at an angle of 36.7 with respect to the_normal of the su ace. Calculate the angle of the reflected ray (in degrees). 3.67:: 101 Previous Tries Calculate the angle of the refracted ray (in degrees). _Tries 9/99 Previous Tries Assume now that the light ray exits the material. It strikes the material-air boundary at an angle of 36.7 With respect to the normal. What is the angle of the refracted ray? _Tries 7/99 Previous Tries