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Accurate linear measurement.
by dividing diameter by 2 :)
A rulerDepending on the degree of accuracy required: a ruler, vernier callipers, micrometer.
Vernier callipers are made in various sizes. The range would depend on the size. The most usual size is 0 - 150 mm
How much error is allowed in a digital vernier
No
Because they were invented by Pierre Vernier in 1631.
4
Pythagoras
yes it is 2.25
Accurate linear measurement.
vernier-caliper
by dividing diameter by 2 :)
It is a defect in a measuring device (Vernier Callipers & Screw Gauge) & zero error is caused by an incorrect position of the zero point.
I would use vernier callipers.
yes
0.1mm It is the range of verniercalliper. As it has least count 0.1mm that's why its range is 0.1 mm in physics laboratory