Our stage micrometer has a line 1mm long with 100 divisions. That means that each division is one one-hundredth of a mm (.01mm or 10um). When looking at it with the reticle, you notice that the lines converge at 8 and again at 16. We will choose 16. At the 16 mark on the reticle, we notice 60 lines on the stage micrometer. What does each mark on the reticle represent?