Book 248 Physics . Wave processes, optics and atomic physics: . Sergey Mikhailovich Kurashev is a unique educational material that will become an indispensable assistant for students, graduate students and everyone who is interested in physics at a deeper level. This work is not just a collection of problems, but a real laboratory of ideas and concepts, allowing the reader to plunge into the world of wave processes, optics and atomic physics. The book contains carefully selected tasks that cover key topics of physics, ranging from the basics of wave processes to complex aspects of atomic physics. Each problem is accompanied by detailed solutions and explanations, which makes the material understandable even to those who are just starting their way in the study of physics. Kurashev masterfully combines theoretical foundations with practical examples, which allows the reader not only to solve problems, but also to understand physical phenomena more deeply. This book will be especially useful for students of technical and natural science specialties, as well as for those who are preparing for exams or Olympiads in physics. It is suitable both for self-study and for use in educational institutions. If you are looking for high-quality resources for preparing for the exam, GIA or university exams, then “248 Physics” will be a real find for you. The topics raised in the book are relevant and important for the modern understanding of physics. Wave processes such as sound and light play a key role in our perception of the world, and optics and atomic physics open the door to understanding complex phenomena such as quantum mechanics and the interaction of light with matter. Kurashev not only offers challenges, but also provokes the reader to think about how these phenomena affect our daily lives and the technologies that we use. The author's style is distinguished by clarity and logical presentation, which makes the material easy to perceive. Sergey Kurashev is an experienced teacher and author of many teaching aids that have proven themselves as reliable sources of knowledge. His other works, such as "Physics. Mechanics and Thermodynamics: . tasks", also received positive feedback and helped many students in their studies. Kurashev knows how to present the material so that it becomes not only useful, but also fascinating .. If you are looking for books on physics that will help you not only to understand complex topics, but also to develop analytical thinking, then “No248 Physics . Wave processes, optics and atomic physics: . Tasks" is exactly what you need. It will be your faithful companion in the study of physics, will help to prepare for exams and expand your knowledge about the world in which we live. Do not miss the opportunity to immerse yourself in the exciting world of physics with this book!