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Asked by: Persida Bowman
science space and astronomyWhat is the most precise measurement for length?
Also question is, what is the most precise unit of measurement?
The record holder changes but at the time of writing themost accurately measured physical quantity is therubidium hyperfine frequency (known to 2.410-15) This measurement represents104 improvement on earliermeasurements.
Besides, what is the precision of a measurement?
Accuracy and Precision: Accuracy refers to thecloseness of a measured value to a standard or known value.Precision refers to the closeness of two or moremeasurements to each other. Using the example above, if youweigh a given substance five times, and get 3.2 kg each time, thenyour measurement is very precise.
four significant figures