Quantum mechanics is an important area of physics and students of ten find it ???tough??? from the understanding point of view. By providing 500 problems with their solutions, Professor Aruldhas, with his expertise in and long experience of teaching the subject, makes the students comprehend the fundamental concepts of Quantum Mechanics with ease. This problem book provides a thorough understanding of the subject and its applications to various physical and chemical problems. The text includes typical problems that illustrate the concepts. It is self-explanatory, comprehensive, and user-friendly.