Principles of Modern Physics, divided into twenty one chapters, begins with quantum ideas followed by discussions on special relativity, atomic structure, basic quantum mechanics, hydrogen atom (and Schrödinger equation) and periodic table, the three statistical distributions, X-rays, physics of solids, imperfections in crystals, magnetic properties of materials, superconductivity, Zeeman-, Stark- and Paschen Back- effects, Lasers, Nuclear physics (Yukawa’s meson theory and various nuclear models), radioactivity and nuclear reactions, nuclear fission, fusion and plasma, particle accelerators and detectors, the universe, Elementary particles (classification, eight fold way and quark model, standard model and fundamental interactions), cosmic rays, deuteron problem in nuclear physics, and cathode ray oscilloscope.

• • The CO2 Laser • Theory of magnetic moments on the basis of shell model • Geological dating • Laser Induced fusion and laser fusion reactor. • Hawking radiation • The cosmological red shift • Non-inertial frames and Einstein's general relativity • Einstein field equation (an introduction) • Schwarzschild metric • Classical and Quantum gravity (an introduction) • Cathode Ray Oscilloscope (a new chapter) • Deuteron problem (a new chapter)

Preface to the Fourth Edition / Preface to the First Edition / Acknowledgements / Onset of the ‘Quantum’ Hypothesis / Relativistic Mechanics / Atomic Structure and Spectra / The Basic Quantum Mechanics / Hydrogen Atom and Periodic Table / Statistical Mechanics (An Introduction) / X-Rays / Physics of Solids / Imperfections in Crystals / Magnetic Properties of Materials / Superconductivity / Interaction of Atoms with External Fields and Radiation / Nuclear Physics / Radioactivity and Nuclear Reactions / Nuclear Fission and Fusion / Accelerators and Detectors of Elementary Particles / The Universe / Elementary Particles / Cosmic Rays / Deuteron Problem / Cathode Ray Oscilloscope / Appendices / References / Exercises / Index.

Undergraduate & Postgraduate Students