Question

What is the least count of a meter rule?

Answer 1

Determine the least Count.

Least Count:

Every measurement instrument's least count is the smallest value that it can measure. 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 $1$cm in the case of a meter scale. The total number of divisions reached is$10$.

So, the formula for calculating the least count is as follows:

$\frac{1\mathrm{cm}}{10}=0.1\mathrm{cm}\mathbf{OR}1\mathrm{mm}$

Hence, the least count on the meter scale is $0.1$cm or $1$mm.