Question

define plane of incidence​

Answer 1

Answer:

In describing reflection and refraction in optics, the plane of incidence (also called the incidence plane or the meridional plane) is the plane which contains the surface normal and the propagation vector of the incoming radiation. In wave optics, the latter is the k-vector, or wavevector, of the incoming wave. When reflection is specular, as it is for a mirror or other shiny surface, the reflected ray also lies in the plane of incidence; when refraction also occurs, the refracted ray lies in the same plane.

Answer 2

Answer:

The plane containing the incident ray and the normal is called plane of incidence.

Hope it helps