Question

A micrometer is _____ as accurate as a caliper?

1) 0.39815
2) Equally
3) Twice
4) 10 times

Answer 1

A micrometre is typically more accurate than a calliper, often by a factor of up to 20 times, with a standard micrometre measuring to an accuracy of 1 micrometre (μm). The closest answer choice to this accuracy comparison is 4) '10 times'.

Step-by-step explanation:

A micrometre is commonly known to be more accurate than a calliper when it comes to measuring. The degree of accuracy or precision in measurement tools is often dependent on how fine the graduations on the tool are and how small a length they can reliably measure. Typically, a standard micrometre is designed to measure with an accuracy of 0.001 millimetres (1 micrometre or μm), while a calliper's accuracy often falls around 0.02 millimetres. This indicates that a micrometre can be up to 20 times more accurate than a calliper, as it allows for finer measurement. Thus, in the list of options given, the closest to the micrometre's increased precision compared to a calliper would be 10 times, although this does not perfectly reflect the typical precision capabilities of micrometres.