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AS Biology- Magnification

Hey, I'm currently struggling on how to work with eyepiece graticule division with these two questions.:frown:

B) A slide micrometer, where 1 division equals 10 micrometres was used to calibrate an eyepiece micrometer. At a magnification of x400 it was found that 100 eyepiece divisions measured 16 slide micrometer divisions. What is the size of one eyepiece division in micrometres at this magnification?

C) A blood smear was examined at the same magnification, and the diameter of a neutrophil was found to measure 10 eyepiece divisions. What is the diameter of the neutrophil in micrometres?

Could someone explain how I would work these out please?
(edited 10 years ago)
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York420
I finally started to enjoy school life and have the best social life I've ever had but problem is I am doing 5 highers and I just want to hang out and enjoy life which I never done in previous years. I need help advice tips the lot

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