The magneto-optic Kerr effect is similar to the Faraday effect, which describes changes to light transmission through a magnetic material. In contrast, the magneto-optic Kerr effect describes changes to light reflected from a magnetic surface.
The magneto-optic Kerr effect is akin to the Faraday effect, which influences how light moves through a magnetic substance. Conversely, the magneto-optic Kerr effect alters how light bounces off a magnetic surface.