Measurement of Basic Constant

Different measuring instruments Vernier caliper gauges, micrometer and spherometer for accurate measurement of length, thickness, curvature and diameter of different lens & glass plates etc. A physical balance is used to compare the weight of different materials .One can know that how the different measuring instrument can be used for different parameters of a material. Vernier caliper 1 Micro-meter 1 Spherometer 1 Physical Balance 2 Pans 500gm 1 Weight Set 1 Brass Ball 25mm/20mm each 1 M.S. Cylinder 35mm 1 Iron Wire dia.=1mm, L=10mtr. 1 Aluminum Foil 1 Watch glass 80mm/100mm/125mm each 1 Glass tubes straight 80mm, 10 1 Glass tube dia. = 24/21mm, L=100mm 1 Cube set of 8 1 Measuring tape 2mtr. 1