the lower side. 17. A prism whose cross section is shaped like an isosceles right triangle is made from a material with index of refraction, n = 1.36. Find the angle 0 of the entering/exiting rays that travel parallel to A. 58° B. 65° C. 70° D. 74° E. 79° ight 9 9

Two plane mirrors make an angle α = 54.0◦ between them. A ray of light incident on one of the mirrors is reflected and hits the second mirror. Find the angle β between the ray incident on the first mirror and the ray reflected off of the second mirror. (a) 36.0◦ (b) 72.0◦ (c) 54.0◦ (d) 24.0◦ (e) None of the above.

Question 9 Suppose the isosceles prism of the figure has apex angle p enter the left face of the prism and exit the right face? (b) What angle of incidence e is required for the ray to exit the prism with an identical angle e for its refraction, as it does in the figure? 50.9° and index of refraction n = 1.52. (a) What is the smallest angle of incidence e for which a ray can (a) Number Units (degrees) (b) Number Units ° (degrees)

Problem 85. A light ray is incident upon a transparent parallel plate of index of refraction 1.52 at an angle of 40° as shown below. A) Sketch the path of the ray through the plate and exiting the plate. B) Find the angle of refraction in the plate at the entry into the plate. C) Find the angle of refraction in the air at the exit from the plate. Air Plate Air 40 1

2. A ray of light in glass (n₁=1.5) enters another material (n2) at a 70° angle; and emerges into the new material at a 45° angle. Find the index n2. n₁=1.5 70° N2 45°

Determine the critical angle for a glass-water interface: the index of refraction of water is n = 1.33 while that of glass is n = 1.52 a. 48.81^0 b. 61.04^0 c. 41.14^0 d. 28.96^0