Basic Physics

Description
Lecture Notes on Modern Physics (B.Tech II Semester) prepared by A. Chandra Prakash Reddy are introductory academic notes designed for first-year engineering students at the Institute of Aeronautical Engineering. These notes introduce the fundamental ideas of modern physics that explain physical phenomena beyond classical mechanics.
The material focuses on the revolutionary scientific developments of the 20th century, including quantum mechanics, atomic structure, wave–particle duality, relativity, and nuclear physics. Through these topics, students learn how matter and energy behave at atomic and subatomic levels and how these principles apply to modern technologies such as semiconductors, lasers, and nuclear energy.
The notes aim to build a conceptual foundation for engineering students so they can understand the physical principles behind modern electronic and technological systems.
Theme
The central theme of the notes is:
Understanding the fundamental principles of modern physics that describe the behavior of matter and energy at atomic and subatomic scales.
Key Topics Covered
Wave–particle duality of matter and radiation
Quantum mechanics fundamentals
Atomic structure and Bohr’s model
Special theory of relativity
Nuclear physics and radioactivity
Applications of modern physics in technology

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