Discuss the wave/particle theory of light. Use diagrams to list and then define the main characteristics of waves. These include the wavelength, amplitude, and frequency.
Present the formula which relates the frequency and wavelength to the velocity.
Introduce the quantum concept, Quanta, and photon.
Discuss Planck's formula and how it applies to the photoelectric effect. Discuss the threshold value for photons to release a photoelectron from a metal surface.