Which of the following statements is correct?
Angle of incidence is the angle between a ray and the surface where the ray incident.
A ray incident on a plane mirror is reflected so that the angle of incidence is equal to the angle of reflection.
When mirroring in a flat mirror on a wall, the mirror image is the same as the object.
We say that a medium is optically denser if light propagates faster in it than in an optically less dense medium.
When a ray enters an optically denser medium, it refracts so that the angle of refraction is smaller than the angle of incidence.
When a ray passes through a flat, optically denser plate with parallel surfaces (plane-parallel plate), the beam changes its direction.
Total reflection may occur in the transition of a ray from an optically denser medium to an optically less dense medium.
