ABOUT THE BOOK"Modern Physics" deals with the invisible silent world of atoms, atomic nuclei and elementary particles where customary physical laws almost cease to operate. The conceptual difficulties involved in fully understanding the ultimate truth about atomic structure, crystal lattices and their description by Miller indices. mysteries of nuclear disintegration and nuclear fission and fusion processes etc.. are elucidated as lucid and limpid as possible.This book contains a large number of both solved and unsolved problems. Some of the latest questions from the B.E., B.Sc. (Engg.) and B.Sc. (General) examinations of various Indian Universities have also been added.