Infinite Reflections: Explaining Mirror Physics

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When two mirrors face each other, they create multiple reflections of an object placed between them due to the continuous reflection of light. Each mirror reflects the image formed by the other, resulting in a series of images that can theoretically continue infinitely if reflections were perfect. However, in reality, light energy diminishes with each reflection due to absorption by the mirrors and surrounding air, leading to darker regions in the reflections. This phenomenon can create an eerie effect, especially in settings like fitting rooms where large mirrors are used. Understanding this concept highlights the fascinating nature of light and reflection in physics.
AaronGaTech
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When you use two mirrors facing each other, an object in between them can be seen ALOT of times. I understand why, but can really describe it in any detail. Can anybody explain with some depth why this happens.
 
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It is because light is reflected A LOT of times :biggrin: Light from the object forms the 1st image when reflected by one mirror, then forms the 2nd image when reflected by the other mirror, and then the 3rd image, 4th image and so on are formed in the same way. You may understand it in another way: the object first forms 2 images via 2 mirrors; then the 2 images form another 2 "images of image", and then there are another 2 images formed, etc.

Theoretically, if the reflection is perfect, then you will have light reflected infinite times. In fact, light energy loses gradually on its path (the air and the mirrors do absorb light energy), so when you look at one of the two big mirrors, you will see some dark regions. It's kind of scary when standing between two big mirrors in the fitting room :rolleyes:
 
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