Question

what is vernier callipher?

Answer 1

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It is used to measure the inner and outer diameter and length measurements. It is working on difference between main scale and vernier scale. It can measure min of .02 mm
and maximum will vary depending on scale...



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Answer 2

Vernier caliper is a device used to measure lengths of small measures such 0.0x cm.

The vernier scale is constructed so that it is spaced at a constant fraction of the fixed main scale. So for a vernier with a constant of 0.1, each mark on the vernier is spaced nine tenths of those on the main scale. If you put the two scales together with zero points aligned, the first mark on the vernier scale is one tenth short of the first main scale mark, the second two tenths short, and so on up to the ninth mark—which is misaligned by nine tenths. Only when a full ten marks are counted is there alignment, because the tenth mark is ten tenths—a whole main scale unit short, and therefore aligns with the ninth mark on the main scale.