<P> In metrology, the least count of a measuring instrument is the smallest change in the measured quantity that can be resolved on the instrument's scale . The least count is related to the precision of an instrument; an instrument that can measure smaller changes in a value relative to another instrument, has a smaller "least count" value and so is more precise . Any measurement made by the instrument can be considered repeatable to no less than the resolution of the least count . The least count of an instrument is inversely proportional to the precision of the instrument . </P> <P> For example, a sundial may only have scale marks representing the hours of daylight; it would have a least count of one hour . A stopwatch used to time a race might resolve down to a hundredth of a second, its least count . The stopwatch is more precise at measuring time intervals than the sundial because it has more "counts" (scale intervals) in each hour of elapsed time . Least count of an instrument is one of the very important tools in order to get accurate readings of instruments like vernier caliper and screw gauge used in various experiments . </P>

What is meant by least count of an instrument
find me the text answering this question