Define least count.

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Least count is a term used in measurement that refers to the smallest unit of measurement that can be made using a particular instrument. It is defined as the reciprocal of the number of divisions on the instrument's scale.

For example, if a ruler has 10 divisions for every centimeter, its least count is 1/10 cm. The least count determines the accuracy of the measurement and is an important factor in choosing the right instrument for a particular measurement task.

Least Count

The least count is the smallest value that can be measured using a measuring instrument.

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Chapter Related Topics
Measurement of length	Unit of Velocity	Fundamental forces in nature
Measurement of mass	Unit of Acceleration	Conservation Laws in Physics
Dimensional Analysis	Unit of Force	Least Count Error

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