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How is the calculation of a least count of a micrometer determined?
Yes, please explain in more detail about the distance between two graduations and the vernier scale.
The distance between two graduations on the barrel of a micrometer is typically 0.5 mm. This distance is divided into any number of equal parts, depending on the number of divisions on the micrometer vernier scale. For example, if there are 50 divisions on the vernier scale, the distance between each division on the vernier scale will be 0.5/50 = 0.01 mm. Therefore, the least count of the micrometer will be 0.01 mm.