Coupled oscillators
Damped oscillator
Dispersion relation
Driven oscillator
Electromagnetic waves
Fourier series
Fourier transform
Infinite coupled oscillators
Infinite oscillator normal modes
Interference/diffraction
Massive string
Polarization
Radiation source
Refraction
Small oscillations (potential energy)
Sound waves in a tube
Speed of light in material
Symmetry (coupled oscillators)
Three dimensional boundary conditions
Two strings attached together
Wave equation