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-   -   Teeth double reflection in mirrors (http://www.physicsforums.com/showthread.php?t=661011)

Tntgsh Dec26-12 09:13 PM

Teeth double reflection in mirrors
 
Hello, guys!

Yesterday I saw my reflection in a mirror and noticed that my teeth had two images on the mirror, and the rest of my face did not. I tried in different mirrors, and the result was the same. At first, I thought it could be the effect of two surfaces of the mirror, and in that case other body parts would also reflect "doubled" when looked close enough in the mirror. However, that was not the case, only the teeth caused that certain pattern.
So, I tried to do the same thing with white objects, and the result is that white objects cause the effect of double reflection. Even the white parts of objects that are almost entirely black or blue, for example, have a double reflection.
Would the cause of this effect be a re-reflection by the white surfaces?

Thank you very much!

flatmaster Dec26-12 09:42 PM

Re: Teeth double reflection in mirrors
 
Have you ever seen your reflection in a window? You can see this best at night if it's dark outside and light inside. If you can see your reflection in a window, why would you see two reflections in a mirror? Look closely at your mirror and observe what part of it is "silvered".

Drakkith Dec26-12 09:43 PM

Re: Teeth double reflection in mirrors
 
It may just be that your teeth really stand out compared to the rest of your face. Same with the white parts of other objects. Try something else that has high contrast between features in a color other than white and see what happens.


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