7A10  Photoelectric Effect
            .10 Photoelectric Effect in Zinc
            .40 Solar Cells
7A15  Millikan Oil Drop
            .10 Millikan Oil Drop
7A20  Compton Effect
7A50  Wave Mechanics
            .20 Microwave Barrier Penetration
7A55  Particle/Wave Duality
7A60  X-ray and Electron Diffraction
            .10 Electron Diffraction
7A70  Condensed Matter