Light Physics

Course with clear explanations of the topics covered in Waves, Sound, and Light for high school and intro college.

This undergraduate textbook aids readers in studying music and color, which involve nearly the entire gamut of the fundamental laws of classical as well as atomic physics. The objective bases for these two subjects are, respectively, sound and light. Their corresponding underlying physical principles overlap greatly: Both music and color are manifestations of wave phenomena. As a result, commonalities exist as to the production, transmission, and detection of sound and light.

This book provides a chronological introduction to the electromagnetic theory of light, using selected extracts from classic texts such as Gilbert’s De Magnete, Franklin’s Experiments and Observations on Electricity, and Huygens’ Treatise on Light. Particular attention is given to the works of Faraday, Maxwell and Heaviside, scientists who unified the formerly separate disciplines of electricity, magnetism and light. Their electromagnetic theory—developed during the 19th century—would lead to the invention of modern radar, electrical power grids, and telecommunication networks.

The controversy between the wave theory and the emission theory of light early in the nineteenth century has been a subject of numerous studies. Yet many is­ sues remain unclear, in particular, the reasons for rejecting Young's theory of light. It appears that further progress in the field requires a better grasp of the overall situation in optics and related subjects at the time and a more thorough study of every factor suggested to be of importance for the dispute.