8 Magnifying power m of a simple microscope is given by m = 1 + (D/f),
where D = 25 cm is the least distance of distinct vision and f is the
focal length of the convex lens If the image is at infinity, m = D/f For
a compound microscope, the magnifying power is given by m = me × m0
where me = 1 + (D/fe), is the magnification due to the eyepiece and mo
is the magnification produced by the objective