1. The problem statement, all variables and given/known data in micrometer, there are 30 smallest divisions on the main scale per inch. One complete turn of the revolving scale that has 20 divisions makes one smallest division on the main scale. What is the smallest possible reading that can be obtained? this is how i solved it. im not sure if it's correct. least count = .02 / 20 = 1 / 1000 mm is this correct?