Introduction to electromagnetic radiation and geometrical optics. Primarily for physics, mathematics, and astronomy majors, but open to other students with a strong background in mathematics. Carries natural science divisional credit (with lab) in CAS. Effective Fall 2018, this course fulfills a single unit in each of the following BU Hub areas: Scientific Inquiry II, Quantitative Reasoning II, Critical Thinking. Effective Fall 2019, this course fulfills a single unit in each of the following BU Hub areas: Scientific Inquiry II, Quantitative Reasoning II, Critical Thinking, Teamwork/Collaboration.