Drawing ray diagrams plane mirrors, concave mirrors, convex mirrors, converging lenses, diverging lenses converging. Various terms associated with spherical mirrors spherical mirror. To show how rays travel in order to form images in a concave mirrors. Converging and diverging lenses 6 2275 speedway, mail code c9000 austin, tx 78712 512 4715847 i.
Unlike plane mirrors, which always produce an image that is. Rules and some examples the images produced by spherical mirrors may be either real or virtual and may be either larger or smaller than the object. For converging mirrors and diverging mirrors, the focal length is equal to onehalf the radius. Think of a fun house carnival mirror and how you appear shorter or taller, these are all effects that various types of curved mirrors have. Ray diagrams concave mirrors in a 3step process, use three principal rays to draw a ray diagram. They feel difficulty on spherical mirrors and lenses. In this equation, the symbols d o and d i represent the distances from the mirror to the object and to the image. When a ray strikes concave or convex mirrors obliquely at its pole, it is reflected obliquely. Interact thats exactly what you do when you use one of the physics classrooms interactives. All of them are segments of spheres centered on a horizontal axis.
Lets see the ray diagrams for concave mirror for the different positions of the object. When a ray, parallel to principle axis strikes concave or convex mirrors, the reflected ray passes through the focus on the principle axis. Grade 8 science ray diagrams for concave mirrors the incident. We also learned that there are two simple rules of reflection for convex mirrors. Using ray diagrams, the is exactly the same distance behind the plane. A plane mirror will always produce a virtual image. Yet the same method works for drawing a ray diagram for any object location. Which, if any, of these scenarios produce a virtual image. 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.
Jul 11, 2011 ray diagram in convex mirror 15,979 views. The goal of the experiment is to be able to analyze ray diagrams so as to determine fundamental properties of image formation. Parallel to the principle axis, as if it had come from the 1st focal point f1 2nd ray. Lets investigate the range of ray diagrams we can draw for such a mirror. On the contrary, in a concave mirror, the reflecting surface bulges inwards the main difference between a convex and concave mirror lies in the image formed by the two mirrors, i. The following sign convention is used for measuring various distances in the ray diagrams of spherical mirrors. What are the important rules for drawing ray diagrams for an. A ray diagram shows the path of light from an object to mirror to an eye. A curved mirror formed by a part of a hollow glass sphere with a reflecting surface created by depositing silver metal is also referred to as a spherical mirror.
Drawing ray diagrams plane mirrors, concave mirrors, convex. Figure 1 shows the three types of mirrors we will consider. You have learned to use ray diagrams to locate images produced by concave mirrors, and you have seen images produced by concave mirrors. Concave mirrors have a curved surface with a center of curvature equidistant from every point on the mirror s surface.
Nov 15, 2017 on the contrary, in a concave mirror, the reflecting surface bulges inwards the main difference between a convex and concave mirror lies in the image formed by the two mirrors, i. Define and illustrate your understanding of real, virtual, erect, inverted, enlarged, and. Terminologies associated with sphericalcurved mirrors. Converging lenses are thicker in the centre, and are thinner near the edges. In this section of lesson 3, we will investigate the method for drawing ray diagrams for objects placed at various locations in front of a concave mirror. Drawing ray diagrams for concave mirrors teaching resources. 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. Ray diagram construction for concave mirrors presented by obina johnson okeny 2. Explain why the light beams are reflected this way using the law of reflection. Thus, i can say, combine efforts of student interest and teachers ideas can solve anything. Learn vocabulary, terms, and more with flashcards, games, and other study tools. A concave spherical mirror has a lens equation similar to that of a geometrical lens. Lens ray diagrams 2 types of lenses just like mirrors convex lens converging thick in middle, thin edge opposite of mirror concave lens diverging thin in middle, thick edge. We use your linkedin profile and activity data to personalize ads and to show you more relevant ads.
Draw a ray, starting from the top of the object, parallel to the principal axis and then through f after reflection. Apr 20, 20 shows how to draw ray diagrams and locate the image for concave mirrors. In this experiment, you will measure the focal length of a concave mirror, locate images produced by real concave mirrors and compare their position to the position predicted by a ray diagram. We would like to suggest that you combine the reading of this page with the use of our. Drawing ray diagrams for concave mirrors tes resources. Ray diagrams and diverging lenses three simple rules of refraction for double concave diverging lenses. Drawing ray diagrams plane mirrors, concave mirrors. Depending on where the object is placed relative to a concave. Difference between convex and concave mirror with comparison.
Concave mirrors and convex mirrors image formation, ray. 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. A concave mirror will only produce a virtual image if the object is located in front of. In this spherical mirrors worksheet, students answer 14 questions about convex and concave mirrors and the images formed in each. On a separate sheet of paper, answer the following questions 1. 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. Using ray diagrams to locate images in concave mirrors by. Characteristics of the image formed by a concave mirror. Chapter 34a reflection and mirrors geometrical a powerpoint presentation by. The method for drawing ray diagrams for concave mirror is described below. In this lab, you will construct the six special ray diagrams for a converging, or concave, mirror. Shows how to draw ray diagrams and locate the image for concave mirrors. The radius of curvature r, which is positive for concave mirrors and negative for convex ones.
Move the object, the candle, with your mouse to explore how the location and the size of. What are the important rules for drawing ray diagrams for. In the first section of lesson 4, we learned how light is reflected by convex mirrors in a manner that a virtual image is formed. Snc 2d light and geometric optics convex mirrors extra practice worksheet a draw a ray diagram for each to locate the image. Jacob physical science the line of sight principle suggests that in order to view an image of an object in a mirror, a person must sight along a line at the image of the object. The reflections when dotted back green lines form a virtual image gray arrow behind the mirror. A ray diagram for concave mirror shows no image is formed. Images produced by different concave mirrors conceptual question the same object is placed at different distances in front of six different concave spherical mirrors.
Here we are going to look at how exactly concave and convex mirrors distort the image of an object. Curved mirrors, ray diagrams, and simulations background information spherical mirrors may be concave or convex. Ray diagrams for concave mirror basic physics tutorials. Spherical mirrors can be convex, such as the mirrors on the passenger side of cars, or concave, such as shaving or makeup mirrors. How do i memorize the ray diagrams of spherical mirrors lenses. The terms concave and convex are from the perspective of the object. Diverging mirrors, sometimes refered to as shoplifting mirrors, only form reduced, virtual images. Figure 33b shows the reflection of several light rays at a curved mirror surface, and figure. Similarly, we see an image of an object because light from the object reflects off a mirror and travel to our eyes as we sight at the image location of the object. Move the object, the candle, with your mouse to explore how the location and the size of the image change with the position of the object. Grade 8 science ray diagrams for convex mirrors convex mirrors stick out they have a curved shape that curves towards the object in front of the mirror. All images formed from convex mirrors are erect, virtual, and diminished in size. An object beyond the center of curvature forms a real and inverted image between the focal point and the center of curvature. Concave mirrors extra practice worksheet a draw a ray diagram for each to locate the image.
You can see a listing of all my videos at my website. A ray diagram for concave mirror shows no image is formed at. Ray diagrams concave mirrors to draw these diagrams, we will have to recall the two rules of reflection for concave mirrors. The trick in drawing ray diagrams is to look where the rays intersect. Jun 29, 2015 description of how to draw ray diagrams for concave mirrors for grade 10 science. To draw these diagrams, we will have to recall the two rules of reflection for concave mirrors. Using the law of reflection, complete the raytrace diagram for the four rays a, b, c, d incident on the curved. For your convenience, blank diagrams will objects already provided are located on this page in ie use landscape. Oct 11, 2017 there are some rules to draw the ray diagrams in optics they are majorly three. Concave mirrors have the focal point f in front of the mirror, and convex mirrors have the focal point behind the mirror. A concave makeup mirror is designed so that a person 25. As can be seen in this diagram below, the incident rays yellow all begin on the top of the object red arrow and are each scattered from the mirror s front, convex surface.
The theme of this unit has been that we see an object because light from the object travels to our eyes as we sight along a line at the object. Learn quiz ray diagram with free interactive flashcards. Description of how to draw ray diagrams for concave mirrors for grade 10 science. 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. The object is between the mirror and the focal point. Grade 8 science ray diagrams for concave mirrors the. They determine if images are real or virtual, if they are upright or inverted, the focal length of the.
Visually rich powerpoint full of diagrams and animations colorful, custom animations clearly show students how to use ray diagrams to locate images in concave mirrors if you like this resource, the full optics unit zip file 3 weeks worth of lessons covering properties of light, reflection, refraction, concave and. Images formed by concave mirror using ray diagram class. There are some rules to draw the ray diagrams in optics they are majorly three. Trace diverging rays backwards image is erect, larger and virtual 1 1 2 2 ray diagrams. This interactive animation shows that indeed, a concave mirror does produce an image of an object in front of it. We are interested in the image produced and therefore the following properties will be looked at. To understand the basic principles of ray optics to understand the principles of construction of ray diagrams to explain how the images are formed by the concave mirrors for various positions of objects objectives. Choose from 361 different sets of quiz ray diagram flashcards on quizlet.
Explain and discuss with diagrams, reflection, absorption, and refraction refraction of light rays. For plane mirrors, the object distance equals the image distance and all images are erect and virtual. When sighting along such a line, light from the object reflects off the mirror according to the law of reflection and travels to the persons eye. Any incident ray traveling parallel to the principal axis on the way to the mirror will pass through the focal point upon reflection.
73 985 883 999 1337 1040 1041 1169 1116 1622 1613 574 76 1279 10 162 894 948 280 110 545 1469 574 672 922 28 49 872 1409 433 844 1024 948 1482