Determine the least Count. Least Count: The smallest value that a measurement tool can measure is its least count. This least count is also known as the mistake associated with the instrument's resolution. Least count formula: We apply the formula below to obtain the lowest count. The least count Division's magnitude divided by the number of divisions required to achieve that magnitude Meter Scale's lowest count Considering the magnitude of cm in the case of a meter scale. The total number of divisions reached is. So, the formula for calculating the least count is as follows:
Hence, the least count on the meter scale is cm or mm.
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