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

select the correct answer. what happens to a light ray if it is incident on a reflective surface along the normal? 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.
Answer
Brief Explanations:
According to the law of reflection, when a light - ray is incident on a reflective surface along the normal, the angle of incidence is 0 degrees. The angle of reflection is equal to the angle of incidence. So the reflected ray also has an angle of 0 degrees with the normal, which means the incident ray retraces its original path.
Answer:
A. The incident ray retraces its original path.