Question

Draw a labelled diagram of an image formed by a compound microscope, with the image at least distance of distinct vision. Write any one expression for its magnifying power.

Answer 1

Expression of magnifying power of a compound microscope is given by:
$m=-\frac{v_o}{u_o}(1+\frac{D}{f_e})$
Where $v_o$ is the image distance from the objective lens
$D$ is the least distance of distinct vision
$f_e$ is the focal length of eye lens.