Question

What happens to a light ray if it is incident on a reflective surface along the normal

Answer 1

A. The incident ray retraces its original path.

B. The incident ray is reflected perpendicular to the normal.

C. The incident ray is reflected at an angle to the normal.

D. The incident ray is not reflected.

^ Are these your options if so its A

Answer 2

The light ray is reflected back into the opposite direction

Step-by-step explanation:

The law of reflection states that when a light ray hits a reflecting surface, the angle of reflection (measured between the reflected ray and the normal to the surface) is equal to the angle of incidence (measured between the incident ray and the normal to the surface).

In this case, we have a light ray that it is incident along the normal to the surface: this means that the angle of incidence is
`0^(\circ)`. As per the law of reflection, the angle of reflection must be the same:
`0^(\circ)`. This means that the reflected ray is also along the normal, just in the opposite direction to that of the incident ray.