Chapter 2 centers on the nature of light, which is humanity’s primary source of information about the Universe. It discusses the dual nature of light as both a particle and a wave; the relationship be...Chapter 2 centers on the nature of light, which is humanity’s primary source of information about the Universe. It discusses the dual nature of light as both a particle and a wave; the relationship between wavelength, frequency, and speed; the wavebands of the electromagnetic spectrum; and continuum and line spectra.
