Question

A vernier caliper is used for measuring lengths to an accuracy of:

Answer 1

Vernier caliper:

1. A measuring instrument that would be utilized to measure linear dimensions. It is also utilized to estimate the diameters of circular items using the measuring jaws.
2. The laboratory vernier calipers have a primary scale and a sliding vernier scale, giving determinations to the nearest $0.00002\mathrm{m}$. A caliper's Vernier scale might just have a count of $0.0001\mathrm{m}$, but a micrometer might just have a count of $0.00001\mathrm{m}$.

Even though there are n divisions upon that vernier scale that overlap with $(\mathrm{n}-1)$ divisions upon that scale reading, the vernier caliper with the lowest count is:

$\mathrm{LC}=\left(1-\frac{\mathrm{n}-1}{\mathrm{n}}\right)\mathrm{MSD}$

Here,

VC is the vernier constant.

MSD is the main-scale division.

VSD is the vernier scale division.

LC is the least count.

Therefore, a vernier caliper is used for measuring lengths to an accuracy of ${10}^{-4}\mathrm{m}$.