Question

What form does it take when the object is viewed through several media?

Answer 1

When an object is viewed through several media, it appears as a virtual image formed by successive refractions at the interfaces, resulting in an apparent position determined by the combined effect of the different refractive indices. This apparent depth is found by summing the normal displacements due to each medium. Thus, the object transforms into a virtual image at a shifted position depending on the media sequence.