The introduction course emphasizes quantitative measurements, the treatment of measurement errors and graphical analysis.. Readings and repeated reading, best values, mistake, discrepancy, systematic errors.. Use of the mean reliability measurements. Accuracy and Precision. A variety of experimental techniques in mechanics and properties of matter and heat will be employed. The experiments include studies of meters, mechanical system, mechanical resonant system, heat, viscosity  etc covered in PHY101, PHY102 and PHY103