At the core of all science, physics helps us understand chemical reactions, protein folding, the Earth’s interior, and the life cycle of stars. Among much else, physicists invented the semiconductor, the laser, and the electron microscope. They play key roles in the design and operation of spacecraft and in the development of electronic and optical instrumentation. The Department of Physics and Astronomy offers an MS degree in physics and two undergraduate degrees: (1) a BS that prepares students for professional careers in applied physics or graduate study, and (2) a BA that combines a strong foundation in physics with electives that allow for a second area of concentration, such as computer science, chemistry, science education, or math. Our faculty are experts in lasers and optics, computational physics, condensed matter, astrophysics, and physics education research.<br><br>This 120-unit program provides a strong foundation in physics while allowing sufficient electives for the student to pursue a second program of study in another field (e.g., science education, business, math, engineering or a second science; transfer students must take at least 12 units of upper division physics major courses at SJSU with a GPA of 2.0 or better in these courses).