Atomic Physics has been chiefly governed by our Adherence to the aim of covering the syllabi prescribed by the various Indian Universities. Each chapter of the book contains a discussion of the subject matter and important mathematical relations followed by suitable solved examples to illustrate the basic principles. Nuclear Physics is the scientific study of the forces, reactions and internal structures of atomic nuclei. It is the field of physics that studies the building blocks and interactions of atomic nuclei. Contemporary nuclear physics research aims to give greater depth to the comprehension of the nuclear force, refining further its internal structure and properties and lucidly explaining its relation to the other three fundamental interactions in nature. This book has been conceptualized and designed keeping in mind the need of graduate and postgraduate students in physics for a comprehensive manual dealing with advanced atomic physics.