Lecture
This lecture explores the wave-particle duality of light and matter, starting with the quantization of energy for radiation and the experiments on the photoelectric effect. It delves into the concept of photons, the Compton effect, and the wave nature of matter as demonstrated by the Davisson-Germer experiment. The discussion includes the Einstein-de Broglie relations, which relate the energy and momentum of photons to their frequency and wavelength. The Young's two-slit experiment is presented to illustrate the wave behavior of light, leading to the conclusion that light can exhibit both wave-like and particle-like characteristics. The lecture also covers the electron microscope's application of electron wave behavior to achieve high resolutions.