Light, Electromagnetic Spectrum, Types of Spectra, Information from Light
This video discusses the electromagnetic wave model for light and the electromagnetic spectrum. The speed of light is compared to the speed of sound. Continuous, Emission, and Absorption spectra are discussed. The reason for identical wavelengths for emission and absorption spectra is explained. Astronomers can determine the temperature and composition of objects by studying the light from the object. This material relates to Chapter 7 of astronomynotes.com. PHY121 SCIE1300 Introductory Astronomy.
Prof. Greg Clements