A mirror is a reflective surface that does not allow the passage of light and instead bounces it off, thus producing an image. The object is the source of the incident rays, and the image is formed by the reflected rays. The use of these diagrams was demonstrated earlier in Lesson 3 and in Lesson 4.Ray diagrams provide useful information about object-image relationships, yet fail to provide the information in a quantitative form. The center of curvature is the point at the center of the sphere and describes how big the sphere is. Convex Mirror Ray Diagram: A convex mirror with three rays drawn to locate the image. A virtual image is right side up (upright). The mirror equation \(\frac{1}{v}+\frac{1}{u}=\frac{1}{f}\) holds good for concave mirrors as well as convex mirrors. Thus, point A′ is image point of A if every ray originating at point A and falling on the concave mirror after reflection passes Continue for other extreme points on the object (i.e. A “virtual” image occurs when light rays do not actually meet at the image. The image A 1 B 1 is formed at a distance 'v' from the mirror. Draw the image of the object, by using the principle that the image is placed at the same distance behind the mirror that the object is in front of the mirror. Drawing a ray diagram is a way to predict what a reflected image will look like. This is shown in. Describe interaction of the light with a mirror surface. Formula: Convex Mirror Equation 1 / f = 1 / d 0 + 1 / d i f = 1/ ((1/d o) + (1/d i)) d o = 1/ ((1/f) - (1/d i)) d i = 1/ ((1/f) - (1/d o)) Where, f = Focal Length d o = Object Distance d i = Image Distance . A convex mirror has a negative focal length because of this. This point is half way between the mirror and the center of curvature on the principal axis. Before that can be done, the focal point must first be defined. P1 (–3, 1) & P2 (5, –2) are two points in II & IV quadrant respectively then their images are Q1 (–3, –1) & Q2 (5, 2) in III & I quadrant respectively. Distinguish properties of the concave and the convex mirrors. The use of these diagrams was demonstrated earlier in Lesson 3 and in Lesson 4.Ray diagrams provide useful information about object-image relationships, yet fail to provide the information in a quantitative form. Let's learn how to solve the Mirror Blocks cube. Derivation. The derivation of mirror formula is given below. The focal point is the same distance from the mirror as in a concave mirror. To obtain this type of numerical information, it is necessary to use the Mirror Equation and the Magnification Equation. Draw the plane mirror as a straight line on a principal axis. The image A 1 B 1 is formed at a distance v from the mirror. In flat, or plane mirrors, the image is a virtual image, and is the same distance behind the mirror as the object is in front of the mirror. Remember to add an arrowhead. Free High School Science Texts Project, Geometrical optics: Mirrors. The image is also the same size as the object. While a ray diagram may help one determine the approximate location and size of the image, it will not provide numerical information about image distance and object size. Mirror Equation for convex lens and concave lens along with a detailed diagram and explanation. The position of the image is obtained by drawing a ray diagram. December 30, 2012. The principal axis is an imaginary line that is drawn perpendicular to the mirror. Free High School Science Texts Project, Geometrical optics: Mirrors. We can see from the figure that this focal length is also equal to half of the radius of the curvature. 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