Final answer:
The question asks about the use of mirrors in cars for visibility. Rearview mirrors help see out the back window, and side mirrors are adjusted to cover blind spots. In physics, this involves the principles of optics and reflection.
Step-by-step explanation:
You should be able to see out the back window with the rearview mirror and adjust your side mirrors to let you see the areas not visible in the rearview mirror, commonly referred to as blind spots.
The primary principle at play here is the reflection of light, where mirrors are used to redirect the light to the driver's eyes, showing images of areas that the driver cannot directly see. In physics, understanding how light interacts with mirrors is part of the study of optics, which is fundamental to designing effective mirrors in vehicles to maximize visibility and safety.
As for the arrangement of mirrors to see the back of your head, at least two mirrors are required, positioned at an angle to each other. This setup allows light reflecting off the back of your head to bounce off one mirror onto the second mirror and then to your eyes, enabling you to see a part of the space that would otherwise be out of your direct line of sight.
The concept is analogous to how headlights use mirrors to form a directional beam of light by trapping and focusing the light in a specific direction.