I would like to express my gratitude to Dr. Snehalata Behura, Registrar, Faculty of Science and Technology, Tripura for allowing us to take up the report. We are grateful to Mrs.Lopamudra Halder, coordinator, Faculty of Science and Technology, Tripura for her coordination regarding the completion of the report. Moreover I would thank Mr.Arindam Saha Faculty of Precession Engineering, Faculty of science and technology for instructing and guiding us to complete our report without any failure. However I would also like to thank Mr.Prashanta Debnath lab assistant for directing us in proper direction for performing the experiment properly. At last but not least I would also thank all my team member for proper cooperation in performing the experiment.