A mirror is a reflective surface that bounces light off of its exterior instead of allowing the passage of light. When an object is placed in front of the mirror, an image of the same object is reflected off of the surface of the mirror. The object is the source of incident rays, and the image is formed by the reflected rays. So when two mirrors are placed face to face, the appearance of multiple mirrors inside of each other is displayed. But when one mirror is angled correctly, the background behind the other mirror can be reflected. I placed a mirror on its side and angled it slightly upward so the reflection of the facing window is shown. Another mirror was sat in front of the larger mirror, and was tilted down so the window’s image reflection bounced between the two. Due to the angle of the camera, the reflection of the window in the smaller mirror lined up with the background showing through the window. At the bottom of the mirror, the mirrors reflecting off of one another can be seen, creating the infinite mirror effect. Glass blocks the shorter-wave UVB rays, but allows most of the longer UVA rays to pass through. Although most of the light rays pass through the window and reflect off of the mirror, some of that light is still lost. That is why the light reflected in the mirrors is not as bright as that shining through the window.