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What is the uncertainty in 5.00mm measured by analog device?

MPZ

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1. Homework Statement
What is the uncertainty in 5.00mm measured by an analog device?

2. Homework Equations
No equations, Uncertainty and error analysis question

3. The Attempt at a Solution
I know that the uncertainty is half the smallest division but i cant figure out what is the uncertainty and how to keep the same number of significant figures!
 

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What is the smallest division?
 

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