with the illustration given

PTC Practice Problem Name: Topic: The Law of Reflection and the Law of Refraction flat mirror A ray of light produced by a lamp strikes a flat mirror at an angle 40.40 of 40.40 with respect to the mirror, as the illustration shows. After reflecting from the mirror, the light will enter a block of fluorite, 5.04 cm which is 5.04 cm below the fluorite. The point where the ray strikes ray from --- the mirror lines up with the left edge of the fluorite. Fluorite has *entry lamp entry point index of refraction 1.434. The fluorite block is 7.68 cm thick. Your task is to calculate how far from the left edge of the fluorite the block: Fluorite left edge I 7.68 cm n = 1.434 1. Enters the fluorite, Xentry. 2. Exits the fluorite, Xexit. Xexit exit point (The answers to 1 and 2 cannot be Explain your reasoning - this problem must be solved in stages. Follow the light as it travels from one point the same.) to the next. You have to apply triangle geometry, so make illustrations of the triangles you are working on and tell me what part of the triangle you are calculating and how you are putting it all together to get the