Smallest value of a physical quantity which can be measured accurately by an instrument is called least count
least count of scale is 1mm
least count means L.C.
5 mm is the least count of theodolite.
for a levelling staff the least count is 0.01in and in m 0.005m
least count for micrometer is 0.01mm0.01 mm
The least count of the micrometer screw can be calculated using the formula given below: Least count = 0.01 mm
the least count of travelling microscope = 0.001 cm
digital micrometer least count calculation
The least count and maximum count of 6 electric appliances is 0.01MM and 25.00 MM respectively.
The importance of least count ( the highest degree of accuracy of measurement) helps calculate the margin of errors when doing measurements.
0.5mm
least count of a micrometer= pitch/no of division on the circular scale