NATS 1585 Lecture Notes - Lecture 5: Special Relativity, Emission Spectrum, Photon
5 Mar 2016
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Nats 1585 lecture 5: light and matter reading messages from the cosmos. Interactions between light and matter determine the appearance of everything around us. Wavelength x frequency = speed of light = constant. Each photon has a wavelength and a frequency. The energy of a photon depends on its photon. Ionization: striping of electrons, changing atoms into plasma. Evaporation: breaking of flexible chemical bonds, changing liquids. Electrons in atoms are restricted to particular energy levels. The only allowed changes in energy are those corresponding to a transition between energy levels. The energies of electrons in atoms correspond to particular energy levels. What are the three basic types of spectra: continuous spectrum. Spectra of astrophysical objects are usually combinations of these three basic types: continuous spectrum. The spectrum of a common incandescent light bulb spans all visible wavelengths without interruption: absorption line spectrum.
