Friesian School
Proceedings of the Friesian School/the Quantacized Atom
A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...
Georgia State University
Georgia State University: Hyper Physics: Photoelectric Effect
Using graphics, words and numbers, the photoelectric effect is described and explained. Planck's theory about quanta of light is explained. Photon energies for the various regions of the EM spectrum are listed. An interactive JavaScript...
McGraw Hill
Mc Graw Hill Companies: Origins of the Quantum Theory
An indexing page for Chapter 27 (Origins of the Quantum Theory) of the companion web site for McGraw Hill's Contemporary College Physics textbook. Includes several worthy pages with chapter notes, simple definitions, online computer...
University of Wisconsin
The Why Files: Positive Energy
A novel idea for converting solar energy to electrical energy. A brief discussion of solar energy collection in space via satellites.
Boston University
Modern Physics: Photoelectric Effect Demonstration
A graphical and verbal description of a demonstration which illustrates the phtoelectric effect. Directions, safety precautions, and explanations are provided. Ideally suited as an idea-generator for a student project or lab investigation.