Additional Resources:
Review & Reflection
4.1 Oscillations
4.2a Travelling waves
4.2b Electromagnetic waves
4.2c Sound waves
4.3a Wavefronts, rays and graphs
4.3b Amplitude, intensity and the inverse square law
4.3c Superposition
4.3d Polarization
4.4a Reflection and refraction
4.4b Total internal reflection
4.4c Diffraction
4.4d Interference
4.5a Standing waves: introduction
4.5b Standing waves: calculations