Question -
Answer -
Focal length of the objective lens, fo = 8 mm = 0.8 cm
Focal length of the eyepiece, fe = 2.5 cm
Object distance for the objectivelens, uo = −9.0 mm = −0.9 cm
Least distance of distant vision, d =25 cm
Image distance for the eyepiece, ve = −d =−25 cm
Objectdistance for the eyepiece = 
Using the lens formula, we can obtain the valueofas: We can also obtain the value of the imagedistance for the objective lens
using the lens formula. The distance between the objective lens and theeyepiece
The magnifying power ofthe microscope is calculated as:
Hence,the magnifying power of the microscope is 88.