The discussion centers on calculating the smallest possible reading of a micrometer scale with 30 smallest divisions per inch and a revolving scale with 20 divisions. The user calculated the least count as 0.02 mm divided by 20, resulting in 1/1000 mm. However, there is a suggestion that the final answer should be expressed in inches, indicating a need for clarity in unit conversion and calculation methodology.
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tsi poera said:Homework Statement
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. I am not sure if it's correct.
least count = .02 / 20 = 1 / 1000 mm
is this correct?