Question
Fri July 13, 2012 By: Tabish

Vernier Calliper

Expert Reply
Tue July 31, 2012
N+m  VSD=N  MSD
1  VSD=N/N+m   MSD
L(LeastCount)=1 MSD- 1 VSD
   =1-N/N+m
   =m/N+m
for the value of m for which the instrument has minimum least count:
dL/dm  =N/(N+m)2
for min  value of L,m=lowest positive integer value( after double differentiating it and for min value the double derivative will be>eq to 0) ie 1.
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