Three beams of light are set into three different material arranged on top of each other as shown, each with an incident angle of 0; = 75.0, and the indices of refraction listed on each material. The boxes are all surrounded outside by air (n = 1.00). (a) Is total internal reflection possible for any of the medium interfaces (ie: air-c; c - b; etc)? If so, what is the critical angle for these interfaces? (b) For box a, what is the angle of refraction from air into the box? What is the angle of refraction from the box into air? (c) For box b, what is the angle of refraction from air into the box? What is the angle of refraction from box b into box a? What is the angle of refraction from box a into air? (d) For box c, what is the angle of refraction from air into the box? What is the angle of refraction from box c into box b? What is the angle of refraction from box b into box a? What is the angle of refraction from box a into air