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What is it that lets us see objects? Some objects, such as the sun, give off their own light. Most objects, however, do not. These objects must reflect light in order to be seen.
What is it that lets us see objects? Some objects, such as the sun, give off their own light. Most objects, however, do not. These objects must reflect light in order to be seen. For instance, the walls in the room do not put out their own light; they simply reflect light from overhead lights or from sunlight that enters the room through a window. Smooth, polished surfaces, like mirrors, are very good at reflecting light. When you place an object between two hinged mirrors, light from the object bounces back and forth between the mirrors before it reaches your eyes. An image is formed each time the light bounces off a mirror. The angle between the two hinged mirrors has a special relationship with the number of images you see. Try to find out what it is!