In magnification of compound microscope we write it as m=L/F0 where F0 is the focal length of objective.

Where L = the distance between the focal length.

But does the ray passes through the focus of eyepiece ...??

 

if it is .. then the image should be at infinity..but it doesnot happens..

Also try to derive the expression of the magnification.

also tell me what assumption should we take in it.?