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. This course satisfies the Core Exploration requirement in the Natural Sciences with Laboratory. Lecture and laboratory. Recommended for chemistry, biochemistry and biology majors. Formerly PHYS 231. Not open to students who have taken PHYS 231. Prerequisite: PHYS 141 or PHYS 151. Co-requisite: MATH 152.