Similar to the conducting plane, the case of a planar interface between two different dielectric media can be considered. If a point charge q is placed in the dielectric that has the dielectric constant ϵ ϵ 1 , then the interface (with the dielectric that has the dielectric constant ϵ ϵ 2 ) will develop a bound polarization charge. It can be shown that the resulting electric field inside the dielectric containing the particle is modified in a way that can be described by an image charge inside the other dielectric. Inside the other dielectric, however, the image charge is not present.