1. The problem statement, all variables and given/known data You've been asked to build a 14X microscope from a 2X magnifying lens and a 5X magnifying lens. What will be the tube length of your microscope? 2. Relevant equations Meye = 25/feye Mobj = -L/fobj M = (Meye)(Mobj) 3. The attempt at a solution First, are you supposed to use the 5X as the objective? That's what I assumed since it's a higher power, but I'm not sure why exactly? Then I'm not quite sure what to do next. I found the feye value to be 12.5 cm. But I get don't know what to do after that. If someone could just point me in the right direction I'd appreciate it! Thanks!