Question

the angle of incidence is the angle between the incident ray and the line _____ to the surface.

Answer 1

Answer:

In geometric optics, the angle of incidence is the angle between a ray incident on a surface and the line perpendicular to the surface at the point of incidence, called the normal.

Explanation:

Answer 2

Answer:

Perpendicular

Explanation:

i = angle of incidence

r = angle of reflection