The refractive index of a transparent material can be determined by measuring the critical angle when the solid is in air. If 6c: 41.9 what is the index of refraction of the material? _Tries 3/99 Previous Tries A light ray strikes this material from air) at an angle of 36.7 with respect to the normal of the sur ace. Calculate the angle of the reflected ray (in degrees). _Tries 2/99 Previous Tries Calculate the angle of the refracted ray (in degrees). _Tries 2/99 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 2/99 Previous Tries