Lev and Priya are standing outside on a calm, sunny day. Lev is holding a mirror facing himself, at an angle so the sunlight reflects off the mirror and onto a nearby wall. Priya is standing next to the wall where the reflected light is visible. If Lev starts to turn the mirror slowly to his left, what will happen to the spot of light Priya sees on the wall?

Provide a very brief response.
As Lev turns the mirror to his left, the angle of reflection will change as well. The reflected light on the wall will move to the right from Priya's perspective. This is because the angle of incidence (the angle at which the sunlight hits the mirror) is equal to the angle of reflection (the angle at which the light reflects off the mirror). As Lev turns the mirror, the angle of incidence increases, causing the reflected ray to rotate in the opposite direction in which Lev is turning the mirror.