Question

a ray diagram is shown. what does the letter x represent? angle of incidence angle of reflection normal medium

Explanation:

The angle of incidence is the angle between the incoming ray and the normal (the dashed line). The angle of reflection is between the reflected ray and the normal. The normal is the dashed line itself. A medium is the substance through which the ray travels. Since \( X \) is between the incoming ray and the normal, it is the angle of incidence.

Answer:

angle of incidence