The present book of Solved Practice Test Papers of Joint CSIR-UGC NET for Physical Sciences is specially published for the aspirants of Junior Research Fellowship (JRF) and Lectureship Eligibility Exam. The book is equally useful for State Eligibility Test (SET) also. The book comprises several Solved Practice Test Papers for CSIR-UGC NET exams on the subject. Detailed Explanatory Answers have also been provided for selected questions which are provided in such a manner to be useful for both study and self-practice from the point of view of the exam. The book will also serve as a true test of your studies and preparation for the exam. The book is aimed at sharpening your problem-solving skills by practising with numerous questions incorporated in these practice papers, and face the exam with confidence, successfully.