1. Reflection and Phase Changes

Learning Outcomes
  • I can explain how light is reflected at boundaries between different media.
  • I can identify when a phase change of π radians occurs upon reflection.
  • I can distinguish between reflections that produce phase changes and those that do not.
  • I can determine the phase relationships of reflected waves.
  • I can apply phase-change concepts to interference problems.

Key Topics:
  • Thin film interference: Soap bubbles, oil slicks.
  • Interference filters in optics.