Question

Write down the magnification formula for a lens in terms of object distance and image distance.

Answer 1

The magnification is represented by m and is given by:

m = `"Height of image"/"Height of object"`

or m = `h_i/h_o`

where h_i = height of image

h_o = height of object

For a lens, magnification can also be written in terms of object distance and image distance as:

m = `v/u`

where v = image distance

u = object distance