![]() ![]() The mirror has a focal point (F) that is located along the principal axis, midway between the mirror's surface and the center of curvature. The center of that original sphere is known as the center of curvature (C) and the line that passes from the mirror's surface through the sphere's center is known as the principal axis. If the outside of the sphere is silvered such that it can reflect light, then the mirror is said to be convex. In Lesson 3, a convex mirror was described as a portion of a sphere that had been sliced away. The diagram at the right depicts a convex mirror. Finally, we will use the mirror equation to calculate numerical information about image distance and size if given an object distance, object size and focal length. We will also investigate how ray diagrams can be used to estimate image location, size, orientation, and type for objects placed in front of convex mirrors. ![]() In Lesson 4, we will follow a similar pattern of inquiry for convex mirrors: investigating how convex mirrors reflect light and produce images. In that lesson, it was shown that concave mirrors can produce both real and virtual images, depending upon the object location. If you observe an imperfection, notify the delivery team and either refuse the item or contact us at 88 for a resolution.Lesson 3 focused on the reflection of light by concave mirrors and on the formation of images by this reflected light.
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