For the students of B.E., B.Tech., B.Arch., B.Sc., A.M.I.E. & other Competitve Examinations.This edition retains the original theme of empahsis on concepts with less mathematical formalism. The practical applications are discussed at each stage. The question bank given at the end of each chapter is updated. Table Of Contents: CONTENTS: Basic Concepts l Electron Ballistics l Electron Optics l Atomic Physics l Structure of Solids l The Band Theory of Solids l Semiconductors l PN Junction Diode l Bio-polar Junction Transistor l Properties of Light l Interference and Diffraction l Polarization l Lasers l Fibre Optics l Atomic Nucleus and Nuclear Energy l Dielectrics l Magnetic Materials l Superconductivity l Architectural Acoustics l Ultrasonics l Elements of Thermodynamics l Special Theory of Relativity l Digital Electronics l Fields l Maxwell's Equations l Appendix. Nobel Laureates in Physics