Physics

Physics

Problem

Which one of the following statements correctly relates the least count of an instrument to the percentage uncertainty in a single measurement? a) Percentage uncertainty=least count2 measured value×100%\displaystyle \text{Percentage uncertainty}= \dfrac{\text{least count}}{2\,\text{measured value}}\times 100\% b) Percentage uncertainty=least countmeasured value×100%\displaystyle \text{Percentage uncertainty}= \dfrac{\text{least count}}{\text{measured value}}\times 100\% c) Percentage uncertainty=measured valueleast count×100%\displaystyle \text{Percentage uncertainty}= \dfrac{\text{measured value}}{\text{least count}}\times 100\% d) Percentage uncertainty=least countmeasured value\displaystyle \text{Percentage uncertainty}= \dfrac{\text{least count}}{\text{measured value}}

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