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Observation:, Value of 1 MSD =............ cm, Total number of VSD = gece nies, , L Value of 1 MSD af a, , "gta number of VSD, , tee eee tenes, , KSPUPTF, , Coe eee e oneness, , , , Experiment No. 1 | WAS. © ov. see, VERNIER CALLIPERS, , A & B - Lower Jaws, C & D - Upper Jaws ., , Aim: | i) To measure diameter of a small spherical / cylindrical body,, , ii) To measure the dimensions of a given regular body of known mass, , S - Screw, , Me Meine Scale and hence to determine its density and, , Ae weet S eile iii)To measure the internal diameter and depth of a given cylindrical, N_ - Strip ~ object like beaker / glass / calorimeter and hence to calculate its, O. - Object volume using vernier callipers., , Apparatus: Vernier Callipers, Spherical body, rectangular block of known mass, | oS and cylindrical object like a beaker / glass / calorimeter. : °, , Principle : The magnitude of ‘n’ vernier scale divisions is equal to the magnitude, of (n— 1 ) number of main scale divisions., , n(VSD) = (n—1)(MSD), i) To measure diameter of a small spherical / cylindrical body:, , nia: Val f 1 MSD, th a Oma: 1) Least Count, LC =———-__—, 4 . ‘Total number of VSD, [o.5 ae 4 2) Total Reading, TR= MSR + (CVD x LC)., , Where MSR - Main scale reading, , =-(5XLC, Pe) EVD “ Coinciding vemier division, , Procedure:, , 1) The least count of the callipers is found., 2) When the lower jaws A and B are in contact firmly, the position ae the vernier ~, zero with respect main sealer zero iS noted If the vernier ZerO c one wi =, , , , , , , , , , , The oe / opting, between the lower ji, , , , , , , ‘, , 4 KSPUPTF