convert the viewing area magnifications of 100x, 400x, and 100x to microns

Question

100x = 2mm =

400x = 0.45mm =

1000x =1.80mm =

Answer 1

There are 1000 microns in a mm so the simple answer as you've asked:

2 mm = 2,000 microns

.45 mm = 450 microns

1.80 mm = 1,800 microns

you may have stated it incorrectly - for a parfocal microscope, the difference in magnification is inversely proportional to the viewing area - (The higher the power, the smaller the viewing area)

so the 1000x magnification should read 0.18 mm or 180 microns.

Those are typical objective powers on a standard medical microscope, 100, 400, and 1000 oil immersion lenses.

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