Write the Rules for the Formation of Image by Spherical Mirrors

A ray chart for the case where the object is in front of the focal point is shown in the diagram on the right. Note that in this case, the light rays diverge after reflection from the mirror. When the light rays diverge after reflection, a virtual image is created. As with flat mirrors, the location of the image can be found by following all the reflected rays backwards until they intersect. To any observer, the reflected rays seem to deviate from this point. Thus, the intersection of the extended reflected rays is the pixel. Since light does not really penetrate this point (light never travels behind the mirror), the image is called a virtual image. Note that if the object is in front of the focal point, its image is a vertical, magnified image that is on the other side of the mirror. In fact, a generalization that can be made about all the virtual images produced by mirrors (planes and curves) is that they are always standing and are always on the other side of the mirror. The height of the object (h1) is always positive. The height (h2) of a virtual image is positive and that of a real image is negative. In other words, if the magnification has a plus sign, then the image is virtual and straight, and if the magnification has a minus sign, then the image is real and vice versa. Since the photo has a very fat body, it stands in front of a concave mirror.

Case 4: When an object is placed in the center of the curvature (at C), both rays pass through the focus. The image formed is:in the center of the curvature, real and vice versa, equal in size to that of an object. The surface that reflects almost all types of light that fall on it is called a mirror. A mirror can have a flat surface or a curved surface. A mirror with a flat surface is called a flat mirror, and a mirror with a curved surface is called a spherical mirror. In this article, we will learn more about convex mirrors and concave mirrors. Q: The value of the focal length of the lens is equal to the value of the distance of the image if the rays are: Case 5: If an object is beyond the center of curvature (beyond C), the image formed: between F and C, real and inverted, is smaller than the object. When an object is placed beyond C, an image is created between C&F. The two most well-known types of mirrors are: in the triangle we have, and in the triangle we have, where is the distance from the object and the distance from the image.

Here is the height of the object and is the height of the image. By convention, a negative number is due to the fact that the image is inverted (if the image were vertical, it would be a positive number). As a result, some students have difficulty understanding how to infer the entire image of an object once only one point in the image has been determined. If the object is vertically aligned (for example, the arrow object used in the following example), the process is simple. The image is just a vertical line. Theoretically, it would be necessary to select each point of the object and draw a separate ray pattern to determine the position of the image of that point. This would require many ray diagrams, as shown below. Case 2: When an object is focused (at F), the reflected light rays pass through the focus and the center of curvature. The image formed is: infinite, real and inverted and greatly magnified. Since the size of the image is equal to the size of his body and he saw his left hand on the right and vice versa. So he was standing in front of an airplane mirror.

Watch the video below to understand concave and convex mirrors. where m = magnification, v = distance from the image, u = distance from the object Since the reflected PS and QR rays deviate from each other and therefore cannot intersect, the reflected PS and QR rays behind the mirror are extended by dotted lines. The PS and QR rays seem to cross backwards at the M` point. Therefore, the properties of the images formed here are formed behind the mirror, the images are greatly enlarged, the images are virtual and straight. When the object is placed at infinity, the PQ and RS rays are reflected parallel to the axis from the Q and S points, respectively. The PQ and RS rays cross and converge on the main focus (f). And when the object is set to infinity, the properties of the formed images are significantly reduced, from the size of a point, real and reversed. It should be noted that the process of constructing a ray pattern is the same regardless of where the object is located. Although the result of the ray pattern (position, size, orientation and image type) is different, the same two rays are still drawn. Both rules of reflection are applied to determine where all reflected rays appear to deflect (which, for real-world images, is also where reflected rays intersect). Case 1: If the object is placed somewhere between the pole and infinity (between P and infinity), the image formed is: behind the mirror between P and F, virtual and vertical, reduced.

Figure 72 shows what happens when the distance of the object is less than the focal length. In this case, the image appears to be behind the mirror to a viewer looking directly at the mirror. For example, the rays emanating from the top of the object appear to come from a point behind the mirror after reflection from the mirror. Note that for clarity, only two beams are used to locate. In fact, two is the minimum number of rays needed to locate a point image. Of course, the image behind the mirror cannot be seen by projection on a screen, because there are no real rays of light behind the mirror. This type of image is called a virtual image. The characteristic difference between a real image and a virtual image is that immediately after the mirror is reflected, the light rays emitted by the object converge on a real image, but deviate from a virtual image. According to Fig. 72, the image stands in relation to the object and is also enlarged.

Ray patterns help us trace the path of light so that the person can see a point on the image of an object. The beam diagram uses lines with arrows to represent the incident and the reflected radius. It also helps us track the direction in which the light is moving.