This edition of the book has been designed to meet the latest requirements of undergraduate students preparing for bachelor`s degree in physical sciences of Indian Universities. The author has been very careful in selecting the topics, laying their sequence and style of presentation to make it easier to understand intrigue concepts. A large number of solved problems are given in each unit. The sequence of units adopted for Volume II are: Unit I-Solid State Physics; Unit II-Physics of Semiconductors and Unit III-Nuclear Physics.