Why is it that objects touching the mirror seem that the mirrored object and the real on are touching each other, while things like dirt and dust always have a gap between them?

Question

Why is it that objects touching the mirror seem that the mirrored object and the real on are touching each other, while things like dirt and dust always have a gap between them?

In: Other

Answer 1

There’s always a gap between objects and their reflection with regular mirrors due to the thickness of the glass pane. If you’re standing in front of a mirror and there’s no gap, it’s one-way-glass.