An intermediate treatment of oscillations and wave mechanics and the nature of light as electromagnetic waves. General topics include linear oscillators, traveling waves, representations by complex numbers, and Fourier analysis. Topics from physical optics include sources of radiation, guided waves, interactions of light and matter, reflection and refraction, interference and diffraction, and scattering from particles. (Offered every other year.) Prerequisites: PHYS 1312 (or 1310) and MATH 2321.