Eli5: How Plane mirror can show full image of the object when the size of the given mirror is half of the height of that object ?

Question

[HERE PHOTOS](http://imgur.com/a/cZVtL6i)

In: Physics

Answer 1

The “size” of an object decreases the farther away it is; you can see this by holding your thumb up to your eye and blocking all your sight versus holding it at arms length and only blocking a tiny bit of your sight.

A mirror reflects light to show you an image of the object. However, since the light has to travel from the object to the mirror to your eyes, it will appear farther away than it actually is, either to you or the mirror. Farther away means that the object appears smaller. So even with a small mirror, you can see the whole object if you are the correct distance from it.