Summary

• EM waves
• Fresnel equations
• Consequences

• Fresnel equations at oblique incidence

• Consequences
1. Plane of incidence
2. λ changes
3. Law of reflection
• In-class example 4.21
4. Snell's law
• ripple tank video and applet
• blackboard optics demo
• image by refraction at plane surface and applet
• In-class example 4.7