314 Chapter 9 Waves and Light Copyright © 2003 Nelson Instructional Master Partial Reflection—Partial Refraction LSM 9.4-1 i r R partially reflected wave fronts reflected ray refracted wave front incident wave front refracted ray fast medium incident ray slow medium air (n 1.00) glass (n 1.50) normal normal Figure 8 For waves and light refracted away from the normal when the speed increases, partial reflection also occurs.
