Problem 6: A corner reflector is shown in the figure. This is a prism which uses total internal reflection at points A and B to reflect light back toward its source. In this specific case the angle of incidence at point A is 0=37° and the angle of the first surface with the horizontal is a = 5°. の B В Part (a) What is the angle ẞ, in degrees, if we want to make sure the incoming and outgoing rays are parallel to each other? B= Part (b) What is the minimum index of refraction for the material used to make this corner reflector, at least at point A?

Problem 6: A corner reflector is shown in the figure. This is a prism which uses total internal reflection at points A and B to reflect light back toward its source. In this specific case the angle of incidence at point A is 0=37° and the angle of the first surface with the horizontal is a = 5°. の B В Part (a) What is the angle ẞ, in degrees, if we want to make sure the incoming and outgoing rays are parallel to each other? B= Part (b) What is the minimum index of refraction for the material used to make this corner reflector, at least at point A?