Salient features of this book: Basic conceptual facts necessary in various experiments have been discussed. The important instruments and the apparatus used in the experiments have been discussed in detail. Necessary theory along with the working formula has been given with each experiment. For the convenience of students, step-wise procedure arranged in logical order is given for each experiment. Recording of observations in tabular form has been emphasized. Specimen viva-voice questions along with their answers have been given at the end of each experiment.