Answer:
4.8 m
Explanation:
A mirror is a reflecting surface on which rays of light are reflected. Reflection occurs when a ray of light bounces off a surface, coming back into the original medium.
There exists two types of mirrors:
- Flat mirrors: they consist of a flat surface
- Curved mirrors: they consist of curved surfaces. They are further divided into convex mirrors and concave mirrors.
For a flat mirror, the image produced from the mirror is always:
- Virtual (on the other side of the mirror)
- Of the same size as the object
- Laterally inverted
- Upright (same orientation as the object)
Moreover, the image produced by a flat mirror is at the same distance from the mirror as the object.
So in this case, since the person is 2.4 m from the mirror, then the image is produced 2.4 m from the mirror (but on the other side).
This means that the total distance between you and your image in the mirror is:
d = 2.4 + 2.4 = 4.8 m
Therefore, the focus of the camera must be adjusted to be at 4.8 m.
