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Micrometer word problem

  1. Jun 26, 2012 #1
    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?
     
    Last edited: Jun 26, 2012
  2. jcsd
  3. Jun 26, 2012 #2

    berkeman

    User Avatar

    Staff: Mentor

    Welcome to the PF.

    The answer should probably be in inches, no?

    And where did you get the numbers in your calculation? Can you explain your approach to solving this problem?
     
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