select the correct answer.\nwhat happens to a light ray if it is incident on a reflective surface along the…

select the correct answer.\nwhat happens to a light ray if it is incident on a reflective surface along the normal?\na. the incident ray retraces its original path.\nb. the incident ray is reflected perpendicular to the normal.\nc. the incident ray is reflected at an angle to the normal.\nd. the incident ray is not reflected.

select the correct answer.\nwhat happens to a light ray if it is incident on a reflective surface along the normal?\na. the incident ray retraces its original path.\nb. the incident ray is reflected perpendicular to the normal.\nc. the incident ray is reflected at an angle to the normal.\nd. the incident ray is not reflected.

Answer

Brief Explanations:

When a light - ray is incident on a reflective surface along the normal, the angle of incidence (i = 0^{\circ}). According to the law of reflection (i = r) (where (r) is the angle of reflection). So, (r=0^{\circ}), which means the reflected ray retraces the path of the incident ray.

Answer:

A. The incident ray retraces its original path.