In this image a stage micrometer and an ocular micrometer are aligned so that the 10 o.u. line aligns with the 100um line. The 200um line of the stage micrometer overlaps with the 90 o.u. line of the ocular micrometer. What is the calibration for this lens? eyepiece graticule 40 50 60 70 100 stage micrometer O 0.8 um/ou O 8 um/ou 1.25 um/ou 0.25 um/ou

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