Through the focal point to the mirror the ray will reflect parallel to the principle axis. In mirrors, images are formed through reflection but lenses form images through refraction. If the object is 12 cm tall, what will be the height of the image. Concave and convex mirrors ray diagram for convex and. A ray diagram is a tool that is used to determine the location, size, orientation, and type of image formed by a mirror. Notes,whiteboard,whiteboard page,notebook software,notebook, pdf,smart,smart technologies ulc,smart board interactive whiteboard created date. In preparation for our exam, i handed out this practice sheet.
The size of the image is much smaller as compared to that of the object. Use the law of reflection and the embedded protractor in order to draw the reflected ray associated with the given incident ray for the following plane mirror situations. Ray diagrams by constructing a ray diagram, we can determine where the image is located, and what it will look like. Convex mirrors extra practice worksheet a draw a ray diagram for each to locate the image. The diagram below represents an overhead view of a triangle in. A spherical mirror is a part of a spherical reflecting surface.
Ray diagrams are used when you want to locate the image that is formed by an object in a given mirror. Ray diagrams for concave mirrors two principal rays are sufficient to find image, use third and fourth to check your diagram example. The focal point is the point at which rays incident. There are a lot of pieces that have to be done just so and the rules seem arbitrary. Parallel to the principal axis to the mirror the ray will reflect through the focal point. The rules are similar, but slightly different, for concave and convex mirrors. Mirror ray tracing is similar to lens ray tracing in that rays parallel to the optic axis and through the focal point are used. Draw a ray parallel to the principal axis, with the reflected ray reflecting in line with the focal point behind the mirror. Ray diagrams for mirrors instructions although there are an in. Ray diagram construction for concave mirrors presented by obina johnson okeny 2. Rays passing through the center of lens are undeflected 3. Convex mirror is a curved mirror for which the reflective surface bulges out towards the.
This document is highly rated by class 10 students and has been viewed 142 times. Ray diagrams and diverging lenses three simple rules of refraction for double concave diverging lenses. First, we draw an image of the object on the other side of the mirror. A concave mirror is a curved mirror with the reflecting surface on. The object is between the mirror and the focal point. You may note in these diagrams that the back of the mirror is shaded. To figure out the position and size of an image reflected by a curved mirror, you can draw a scaled diagram of the mirror as follows. There are two types of spherical mirrors convex mirror and concave mirror. Ray diagrams for the convex mirror basic physics tutorials. Plane mirrors iii a ray of light is approaching a set of three mirrors as shown in the diagram. A mirror is a part of a smooth and highly polished reflecting surface. Lets explore the ray tracing technique to figure out the properties of images when.
The ray 1 or the light beam 1 that come to the convex mirror are drawn parallel to the principal axis and touch the upper end of the object, then reflected by the convex mirror where the beam of light reflects as if from the focal point f. Any incident ray traveling parallel to the principal axis of a diverging lens will refract through the lens and travel in line with the focal point i. Draw a ray in line with the focal point, with the reflected ray parallel to the principal axis. For the following mirrors and corresponding object positions, construct ray diagrams. Figures 2 and 4 are examples of ray diagrams for lenses and mirrors. Ray diagrams for concave mirrors were drawn in lesson 3. You must be able to draw ray diagrams for plane mirrors, and be able to calculate image and object heights, distances, and magnifications.
Ray diagrams for concave mirror basic physics tutorials. This booklet uses red for rays through the vertex, green for rays parallel to the principal axis, blue for rays through the focus, and yellow for rays through the centre of curvature. Spherical mirrors like the ones on sharp corners on roads, in grocery stores, etc a spherical mirror is simply a piece of a mirrored sphere. A ray diagram is a diagram showing rays that can be drawn to determine the size and location of an image formed by a mirror or lens. In this experiment you will learn to determine the focal lengths of mirrors and lenses.
You will also verify the mirror and lens equation and the magnification formula by direct measurement of the positions of object and image. If an object is in the front of a convex mirror surface that reflects light, the convex mirror will form the image of the object. Ray diagrams are used to depict the image formation by tracing the path of light rays i. A ray parallel to mirror axis passes through the focal point of a concave mirror or appears to come from the focal point of a convex mirror. To show how rays travel in order to form images in a concave mirrors. For concave mirror, the reflected rays converge to the focal point f located at f. Use a pencil, ruler and protractor since neatness will be a factor in your final grade. Rays passing through the focal point reflectrefract parallel through the axis. Ray diagrams for concave mirrors the physics classroom.
You must understand the differences between these two kinds of mirrors, be able to draw. How many times will the ray reflect before it exits the system. It presents the six different situations above, with an appropriatelysized mirror or lens, with focal and center points already labeled, and an object already drawn. Concave mirrors and convex mirrors image formation, ray diagram. Ray diagrams and curved mirrors our mission is to provide a free, worldclass education to anyone, anywhere.
You can see a listing of all my videos at my website. The cartesian sign convention is used here using a ray parallel to the principal axis and one incident upon the center of the mirror, the position of the image can be constructed by backprojecting the rays which reflect from the mirror. A spherical mirror whose reflecting surface is curved outwards, is called a convex mirror. Where will an image form if an object is placed 58 cm from the mirror. Initially, we have an object in front of a plane mirror. Drawing a ray diagram is a great way to get an idea about whats going on. Worksheet 3 pages and homework 1 page with answers for mirror diagrams, including the law of reflection angles of incidence and reflection equal, and the concept of virtual images.
Shows how to draw ray diagrams and locate the image for concave mirrors. Ray diagrams let us move now from plane mirrors to spherical mirrors, which curve like the surface of a sphere. Snc 2d light and geometric optics convex mirrors extra practice worksheet a draw a ray diagram for each to locate the image. They are drawn in order for anyone to view a point on the image of an object. Concave mirrors and convex mirrors image formation, ray. Description of how to draw ray diagrams for convex mirrors for grade 10 science. The method is applied to the task of drawing a ray diagram for an object located beyond the center of curvature c of a concave mirror. How to predict where the image of an object is, in a convex mirror.
Ray diagrams for mirrors ray diagrams for mirrors mirror. You may now understand that the surface of the spoon curved inwards can be approximated to a concave mirror. Lets explore the ray tracing technique to figure out the properties of images when things are kept in front of a concave or a convex mirror. Spherical mirrors can be convex, such as the mirrors on the passenger side of cars, or concave, such as shaving or makeup mirrors.
Rays parallel to the axis are reflectedrefracted through focal point 2. If the distance of the object from the convex mirror is known, how to draw the image formation of the object. This is explained with the help of ray diagrams as follows. Light ray diagrams plane mirrors teaching resources. Learn about concave mirrors and convex mirrors indepth. Image formation by convex and concave lens ray diagrams. I am parallel to the principal axis i am extended backwards by dotted lines because i. This collection of 48 slides leads students slowly and clearly through all the major ray diagrams for lenses and mirrors in a c.
When an object is placed behind the center of curvature, a real image is formed between the center of curvature and focus. Drawing ray diagrams for plane mirrors mini physics. Ray diagrams for convex mirrors the physics classroom. This is a short tutorial on how to draw ray diagrams for plane mirrors. It is a simple process, as long as you follow a few simple rules. The most convenient way to create a ray diagram with spherical mirrors is to draw 3 strategic rays. Ray 1 or light beam 1 that comes into the concave mirror is drawn parallel to the principal axis and touches the upper end of the object, then reflected by a concave mirror where the reflected light beam must pass through the focal point f. View notes ray diagrams for mirrors from geo 111 at vilniaus gedimino technikos universitetas. The image is close to the mirror, upright, small and virtual. The method for drawing ray diagrams for concave mirror is described below.
A third useful ray is that through the center of curvature since it is normal to the mirror and retraces its path backward. Ray diagrams can be one of the trickiest things to really get in introductory physics. Ray diagrams in addition to using the mathematical relationships to determine the properties of images, such as the image distance and magni. The schematic representation of these mirrors is shown in fig. In this lesson, we will see a similar method for constructing ray diagrams for convex mirrors. When an object the is placed at infinity, a real image is formed at the focus. Image formation in a convex lens can be explained with. Ray diagram practice concave mirrors displaying top 8 worksheets found for this concept some of the worksheets for this concept are ray diagrams for concave mirrors, converging diverging lenses ray diagrams, mirror ray diagram work answers, ray diagrams, ray diagrams for convex mirrors, physics, 1 1 1 h d i i in every problem draw a ray i o f h d o. Explore more about concave mirror ray diagram, convex mirror ray diagram and much more at. Therefore it has a radius, center point, circumference, etc lets make ray diagrams. We use ray diagrams, and then estimate distances based on the scale of the diagram. Yet the same method works for drawing a ray diagram for any object location.
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