vernier calipers
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Vernier Calipers
Aim; To find the diameter of the given sphere and hence calculate its volume.
Observations:
Value of one main scale division(MSD ) = cm
Total number of vernier divisions n =
Length of vernier scale,l = cm
Value of one vernier division (VSD) = l/n = cm
Least count =1 MSD – 1 VSD = cm = x10-2m
AFS2012/Dept of Sci/Phy Grd 8
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Formulae:
Volume of the sphere= 43
πr3
Diameter of the sphere=[MSR+(V.S.R x L.C)]
Observations
Least count= 0.01cm = 0.01 x10-2m
Zero correction= divisions
Dimension measured
S.No Main scale reading(MSR)x10-2m
Vernier scale division(VSD)
Vernier scale reading=(VSR)±ZC
Correct reading=MSR+(VSRxLC)x10-2m
Diameter of solid sphere
Mean= x10-2m
Diameter of the solid sphere d= x10-2m
Radius of the solid sphere r=d/2= x10-2m
Volume of the solid sphere= m3
AFS2012/Dept of Sci/Phy Grd 8