Physics is a vast field of study. It primarily studies the concepts of motion, energy and force with respect to matter. Modern physics expands into interdisciplinary fields such as quantum chemistry, biophysics, particle physics, etc. This book attempts to understand the multiple branches that fall under the discipline of modern physics and how such concepts have practical applications. The various studies that are constantly contributing towards advancing technologies and evolution of this field are examined in detail. Scientists and students actively engaged in this field will find this book full of crucial and unexplored concepts.