Physics has been taught at the high school and college level primarily by the lecture method together with laboratory exercises aimed at verifying concepts taught in the lectures. These concepts are better understood when lectures are accompanied with demonstration, hand-on experiments, and questions that require students to ponder what will happen in an experiment and why Students who participate in active learning for example with hands-on experiments learn through self discovery By trial and error method they learn to change their preconceptions about phenomena in physics and discover the underlying concepts. Laboratory techniques are the sum of procedures used on natural sciences such as chemistry, biology, physics in order to conduct an experiment, all of them follow scientific method; wholesome of them involves the use of complex laboratory equipment from laboratory glassware to electrical devices others don't require such specific or expensive supplies. Physics research presents a variety of technical situations involving a wide spectrum of potential hazards. Laboratory work, therefore, may involve tasks that are potentially hazardous. An essential part of an engineering experiment is the presentation of the fully analyzed results in the form of a well prepared report for a client or prospective client Your lab workbook, if well done, may be considered as the preliminary state of such a report Since time is money, engineers plan to record, analyst and display as immediately as possible the results and conclusions of the experiment. This immediate analysis and display has a second enormous virtue: it shows at once when an experiment is going wrong. Designed for physics students treating the underlying basis for modern techniques and the devices used, this encyclopaedia covers the entire spectrum of laboratory physics and a useful reference for all students and teachers