This book is a university physics book designed to teach and be a reference book at university about modern physics. This book is straightforward in explaining university physics to the reader. The book covers quantum mechanics, the wave equation, Schrodinger's equation, reflection and transmission by a barrier, the tunnel effect, the harmonic oscillator, Schrodinger's equation for a hydrogen atom, principal quantum number, orbital quantum number, magnetic quantum number, the normal Zeeman effect, de Broglie waves, wave function, de Broglie wave velocity, phase and group velocities, particle in a box, and the uncertainty principle. This university physics book also covers the alpha particle, the photoelectric effect, quantum theory of light, wave particle duality, the massless particle, the Compton effect, space and time dilation, and mass and energy. This university physics book also covers Maxwell's equations, electromagnetic waves, radiation from an antenna, and antenna array mathematics with an exponential travelling wave multiplied by a sinusoid travelling wave. This university physics book also covers electrical resistance, capacitance and, inductance in an electrical circuit with full mathematical explanation. All these physics topics have mathematics explained well and are easy to understand for the reader of this book. All mathematical partial differential equations are worked out clearly for the reader. All mathematical full differential equations are worked clearly out for the reader. There are appendices for nuclear science and the Heisenberg uncertainty principle.