This book presents a comprehensive study of important topics of Spectroscopic and Theoretical Physics for the P.G and Research Students. This book will benefit the Students of Physics Chemistry and Pharmacology. This book includes topics like 'Fourier Transform-Raman Spectroscopy', 'Nuclear Magnetic Resonance' 'Ultraviolet - Visible Spectrometry', 'Fourier Transform Infrared Spectrometer', 'Quantum Chemical Calculations', 'Pharmaceutical Materials'.