The fifth volume of Physics Optics & Modern Physics is a thorough study guide for students getting ready for competitive tests. With an emphasis on objective-type problems, the book discusses subjects including quantum physics, relativity, and optics. With thorough explanations and solutions, this book aids students in strengthening their physics foundation and problem-solving abilities. It is a great tool for students who want to succeed in physics because it includes practice questions and exercises to enhance learning. The questions are pertinent and difficult.