In-depth introduction to waves, optics, quantum mechanics and relativity. Topics include transverse/longitudinal waves, interference, wave/particle duality, the Bohr atom, the Schrodinger equation, time dilation/length contraction, and relativistic energy/momentum. Recommended for physics majors and minors. This course satisfies the Core Curriculum requirement in Natural Science with Laboratory. Lecture and laboratory. Formerly PHYS 231. Not open to students who have taken PHYS 231. Prerequisite: PHYS 141 or PHYS 151. Corequisite: MATH 152.