To solve this question, we need to apply the law of reflection, which states:
The angle of incidence is equal to the angle of reflection.
This law applies when light reflects off a smooth surface such as a mirror. The angle of incidence is the angle between the incoming ray of light and the normal to the surface at the point of incidence. The normal is an imaginary line perpendicular to the surface at the point of incidence. Similarly, the angle of reflection is the angle between the reflected ray of light and the normal.
In this case, you are given that the incoming ray of light hits the mirror at an angle of incidence of 54°. By the law of reflection, the angle of reflection is equal to the angle of incidence.
Therefore, the angle of reflection for the same ray leaving the mirror is also 54°.
The correct answer to this question is:
C. 54°
