A BRIEF INTRODUCTION TO THE CONTENT The content of this volume includes three parts: electromagnetism, wave and optics, and fundamentals of quantum physics. In the part of electromagnetism, the fundamental concepts and principles, as electric field, magnetic field, and electromagnetic induction, are explained explicitly. In the part of wave and optics, the basic characteristics of vibration and wave, and the basic principles of wave optics and geometric optics, are introduced. In the part of fundamentals of quantum physics, the basic concepts as wave\|particle quality, probability wave, uncertainty relation and energy quantization, and the regulations about the states of electrons in atoms and solids are given. At last, a short statement about the nucleus physics including radioactivity, is introduced. Volume 2 and Volume 1 cover all the pedagogic requirements of physics course in colleges and universities and hence can be used as textbooks of physics. They can also be used as pedagogic references by high\|school teachers or as self\|learning materials by other readers.
