Regardless of exactly where the object is located between C and F, the image will be located somewhere beyond the center of curvature. In this case, the image will be an upright image. Case 5: The object is located in front of F. When the object is located at a location beyond the focal point, the image will always be located somewhere on the opposite side of the mirror. In this section, let us look at the types of images formed by a convex mirror. Always within the focus, irrespective of the position of the object. Trajectory - Horizontally Launched Projectiles Questions, Vectors - Motion and Forces in Two Dimensions, Circular, Satellite, and Rotational Motion, Two Rules of Reflection for Concave Mirrors, Case 2: the object is located at the center of curvature (C), Case 3: the object is located between the center of curvature (C) and the focal point (F), Case 4: the object is located at the focal point (F). Always make note of all the formulas and practise them frequently to remember them by heart. Real images can be formed by concave mirrors and converging lenses, only if the object is placed further away from the mirror or lens than the focal point, and this real image will be inverted. Concave mirrors can produce both real and virtual images; they can be upright (if virtual) or inverted (if real); they can be behind the mirror (if virtual) or in front of the mirror (if real); they can also be enlarged, reduced, or the same size as object. It might be noted from the above descriptions that there is a relationship between the object distance and object size and the image distance and image size. As discussed earlier in Lesson 3, light rays from the same point on the object will reflect off the mirror and neither converge nor diverge. In this case, the if the object (the arrow) is placed just behind the center of curvature, then the reflected image is upside down and in front of the mirror's center of curvature. To understand them you need to be very much perfect with the derivations of the formulas. 7. They are used to focus light. The L of L•O•S•T represents the relative location. They can be used as street light reflectors because they can spread the light over a bigger area. A plane mirror will always produce an upright image. Then altering the object distance to values less than one focal length produces images that are upright, virtual and located on the opposite side of the mirror. As the object is moved beyond the center of curvature, the image continues to grow smaller. If the mirror is flat that would cause the image to appear life-size. Mirrors are not always flat and can be produced in a variety of configurations that provide interesting and useful reflection characteristics. For this reason, the image location can only be found by extending the reflected rays backwards beyond the mirror. To operate the tutorial, use the Object Position slider to translate the arrow back and forth in front of the mirror. The size of the image is the same as that of the object. This is because of how reflection takes place. The S of L•O•S•T represents the relative size (either magnified, reduced or the same size as the object). In this case, the image will be inverted (i.e., a right side up object results in an upside-down image). Moving the object still closer to the mirror produces an even larger real image. 1. As the arrow is moved away from the mirror, the inverted, real image grows larger and becomes equal in size to the object at the center of curvature. Regardless of exactly where the object is located, the image will be located in the specified region. If the spoon is moved farther away, a demagnified upside-down view of the whole face will be seen. That is to say, if the object is right side up, then the image is upside down. Plane mirrors always produce virtual images which are upright and located behind the mirror; they are always the same size as the object.