G. ARULDHAS, PhD, was Professor and Head of Physics Department, and Dean, Faculty of Science, University of Kerala. With over four decades of teaching experience at the PG level.
Dr. Aruldhas served as CSIR Emeritus Scientist and Director, University Institute of Technology, Kerala University. He published about 145 research papers in various national and international journals. Dr. Aruldhas authored four other books which were published/are being published by PHI Learning.
P. RAJAGOPAL, Ph.D., is Senior Lecturer, Department of Physics, C.M.S. College, Kottayam, Kerala. He has over 13 years of teaching experience at undergraduate and postgraduate levels. He has contributed ten research papers, including seven in international journals.