AFS2012/Dept of Sci/Phy Grd 8
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 = x10-2
m
AFS2012/Dept of Sci/Phy Grd 8
Formulae:
Volume of the sphere= πr3
Diameter of the sphere=[MSR+(V.S.R x L.C)]
Observations
Least count= 0.01cm = 0.01 x10-2
m
Zero correction= divisions
Dimension
measured
S.No Main scale
reading(MSR)
x10-2
m
Vernier scale
division(VSD)
Vernier scale
reading=(VSR)±ZC
Correct
reading=MSR+(VSRxLC)
x10-2
m
Diameter of
solid sphere
Mean= x10-2
m
Diameter of the solid sphere d= x10-2
m
Radius of the solid sphere r=d/2= x10-2
m
Volume of the solid sphere= m3

Vernier calipers

  • 1.
    AFS2012/Dept of Sci/PhyGrd 8 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 = x10-2 m
  • 2.
    AFS2012/Dept of Sci/PhyGrd 8 Formulae: Volume of the sphere= πr3 Diameter of the sphere=[MSR+(V.S.R x L.C)] Observations Least count= 0.01cm = 0.01 x10-2 m Zero correction= divisions Dimension measured S.No Main scale reading(MSR) x10-2 m Vernier scale division(VSD) Vernier scale reading=(VSR)±ZC Correct reading=MSR+(VSRxLC) x10-2 m Diameter of solid sphere Mean= x10-2 m Diameter of the solid sphere d= x10-2 m Radius of the solid sphere r=d/2= x10-2 m Volume of the solid sphere= m3