Question

Which of the following measurement is most precise?


50.00 mm


5.00 cm


5.00 m


5.00 km

Answer 1

Answer ⇒ Option (a). 50.00 mm.

Reason/Explanation ⇒ As we know that the Precision tells the Resolution or the limit by which the measuring instruments can measure.

If we want that in simple language, the more the significant figure as measured from the reading of the Instruments, the More Precise the Instrument is.

From the above Options, it can be made clear that only option (a). have the high number of significant figures as compared to others.

∴ It is more Precise as compared to others.

Hence, Option (a). is correct.

Hope it helps.