What is the most precise measurement for length?

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For example, a standard ruler can measure lengthto the nearest millimeter, while a caliper can measurelength to the nearest 0.01 millimeter. The caliper is a moreprecise measuring tool because it can measureextremely small differences in length.

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Also know, 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.

which of the length measurement is most accurate and why? The most accurate measure is 0.005 mm. This isbecause the value has been measured up to three decimalplaces unlike the other two values.

Keeping this in view, 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.

How many significant figures are in the measurement 1.050 L?

four significant figures


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