The lenses used in a compound microscope have powers of 90
The lenses used in a compound microscope have powers of + 90 D and + 60 D . If a total magnification of -250 x is desired, what should be the distance between the two lenses?
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the lenses used in a compound microscope have powers of 90 d and 60 d if a total magnification of -250 x is desired
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