Cbse 2011 a convex lens of smaller focal length can be used as magnifying glass. Ray diagrams can be used to determine the image location, size, orientation and type of image formed of objects when placed at a given location in front of a mirror. 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. Identify the location of the image, orientation upright. Ray diagram construction for concave mirrors presented by obina johnson okeny 2. Identify the location of the image, orientation upright or inverted of the image, the relative size of the image larger or. A spherical mirror is a part of a spherical reflecting surface. Concave mirrors and convex mirrors image formation, ray diagram. Therefore it enables the driver to see wide field view of the traffic behind the. Draw ray diagrams showing the image formation by a concave lens when an object is placed a at the focus of the lens b between focus and twice the focal length of the lens c beyond twice the focal length of the lens 34.
Describe the shapes of three typical converging positive thin lenses and. Concave mirror convex mirror image formation by concave mirror concave mirror ray diagram image formation by convex mirror. An image is formed in 35 cm in front of the mirror. Phys 4d solution to hw 4 january 28, 2011 problem giancoli 321 i when you look at yourself in a 60cmtall plane mirror, you see the same amount of your body whether you are close to the mirror or far away. 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. Through the center of curvature the ray will reflect straight back along the incident path. I am parallel to the principal axis i am extended backwards by dotted lines because i. Curved mirrors and lenses templates for ray diagrams. Nov 16, 2012 we use ray diagrams, and then estimate distances based on the scale of the diagram. In order to run them you will need to install the java development kit. Like in the interactive animation for the convex mirror, you can turn on and off the three principal rays to study how the. Image formation by convex mirrors richard fitzpatrick. The following diagrams have an outline of the mirror either concave or convex, the focal point, the center of curvature, and an object an arrow. Concave and convex mirror ray diagram worksheet diagrams.
We also learned that there are two simple rules of reflection for convex mirrors. Draw ray diagrams to represent the nature, position and relative size of the image formed by a convex lens for the object placed. Each case will use the three rays outlined in the lesson on spherical mirrors where you are provided with diagrams showing you how each image is formed. The trick in drawing ray diagrams is to look where the rays intersect. A concave mirror is a curved mirror with the reflecting surface on the. Convex mirror ray diagram uses of concave and convex mirrors sign convention for spherical mirrors. A student draws a ray diagram but forgets to label the object, the image, or the type of lens used. An image can be obtained with the help of a convex lens side by side with the object when the convex mirror reflects the rays along the same path, i. Ray diagrams for convex mirrors read from lesson 4 of the reflection chapter at the physics classroom. Drag the top of the object to move it along the axis. Give reasons and draw a ray diagram to support your answer. The focal length of a convex mirror can be determined by introducing a convex lens between the object and the convex mirror. Draw a ray, starting from the top of the object, parallel to.
A concave spherical mirror has a lens equation similar to that of a geometrical lens. The lesson covers plane, convex, and concave spherical mirrors with ray diagrams and characteristics. Ncert cbse solutions for class 10 science chapter 10. How light rays reflect from the surface of a convex mirror. The concave mirror shown below has an object placed 20cm in front of it. Snc 2d light and geometric optics convex mirrors extra practice worksheet a draw a ray diagram for each to locate the image. There are two types of spherical mirrors convex mirror and concave mirror. Learn about concave mirrors and convex mirrors indepth. Read from lesson 4 of the reflection chapter at the physics classroom. This is the type of information that we wish to obtain from a ray diagram. A ray diagram for concave mirror shows no image is formed at. Calculate the magnification of the image and the focal.
A convex mirror diagram showing the focus, focal length, centre of curvature, principal. Mirror formula with solved numericals class 10 teachoo. In this practice worksheet students will ray diagram on a flat mirror and then on concave and convex mirrors. Ray diagram for a convex lens figure below shows how light rays are focused by a convex lens. In every problem, draw a ray diagram to confirm your answer. For each of the questions below, you must draw a ray diagram to show the image. In preparation for our exam, i handed out this practice sheet. Users can purchase an ebook on diskette or cd, but the most popular method of getting an ebook is to purchase a downloadable file of the ebook or other reading material from a web site such as barnes and noble to be read from the users computer or reading device. Your students can use the templates to complete their lesson, practice and homework. May, 2014 how to predict where the image of an object is, in a convex mirror.
In the second simulation, i used the laws of drawing the ray diagrams as given in my book. Where will the image form if the same object is placed 15 cm in front of a convex mirror with a focal length. Question 2 the image formed by a convex mirror is seen to be erect,virtual and diminished. A curved mirror is a mirror with a curved reflecting surface. A convex mirror is a curved mirror with the reflecting surface on the outerside. Any ray appearing to travel through the virtual focus f is reflected parallel to the principal axis. Concave mirrors and convex mirrors image formation, ray. Similarly, we see an image of an object because light from the object reflects off a mirror. 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. Ray tracing activity curved mirrors extension worksheet pdf this file. Drawing ray diagrams for concave mirrors tes resources. When parallel lightrays strike a convex mirror they are reflected such that.
Download this books into available format 2019 update. Convex mirror is used because it always produces a virtual, and erect image whose size is smaller than the object. Convex mirrors give an erect, virtual, full size diminished image of distant objects. They are drawn in order for anyone to view a point on the image of an object. Feedback greatly received particularly constructive ways to improve. Convex mirrors are used as security mirrors in atms to assist the customer in viewing the persons behind them. To show how rays travel in order to form images in a concave mirrors. Selection file type icon file name description size revision time user.
A mirror is a surface which reflects a clear image. Notes,whiteboard,whiteboard page,notebook software,notebook, pdf,smart,smart technologies ulc,smart board interactive whiteboard. For your convenience, blank diagrams will objects already provided are located on this page in ie use landscape mode with margins of 0. Therefore it has a radius, center point, circumference, etc lets make ray diagrams. Ray diagrams for convex mirrors drrossymathandscience. Using the law of reflection, complete the raytrace diagram for the four rays a, b, c.
The image is close to the mirror, upright, small and virtual. App file and enter the values for the object and image distances. Use the thin lens equation to find the distance of the image. Draw the ray diagram and find the position, size and the nature of the image formed. In case, of a convex mirror, there are only two possible positions where the object can be. A ray of light, incident obliquely on a face of a rectangular glass slab placed in air, emerges. Ray diagram for convex and concave mirror a mirror is a part of a smooth and highly polished reflecting surface.
This interactive animation shows that indeed, a concave mirror does produce an image of an object in front of it. Furthermore, the image will be upright, reduced in size smaller than the object, and virtual. Any light ray traveling parallel to the principal axis is. Draw a ray diagram and use the information from the ray diagram to fill in the box. Jan 04, 2017 not sure exactly what youre getting at. In your class discussion, you will learn how the use of ray diagrams can help you to determine how and where. Ray diagrams for convex mirrors the physics classroom. A convex mirror will reflect a set of parallel rays in all directions. Proof that the radius of curvature is twice the focal length of the mirror. Ray diagrams are used to depict the image formation by tracing the path of light rays i. A ray diagram for a convex mirror shows that the image will be located at a position.
A lens is not coated as a mirror, but because of the way the surface is curved, they can make light rays passing through them diverge or converge. Converging and diverging lenses 6 2275 speedway, mail code c9000 austin, tx 78712 512 4715847 i. 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. Shedding light on curved mirrors liacos educational media.
General rules for image formation using ray diagrams. 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. An object is placed between infinity and the pole of a convex mirror. Concave and convex mirrors ray diagram for convex and. Grade 8 science ray diagrams for concave mirrors the. Where will an image form if an object is placed 58 cm from the mirror. Reflection and mirrors the following downloadable pdf files represent a collection of classroomready worksheets pertaining to the topic of reflection and mirrors. In this image, we can see that when the ray is at height of 0. A curved mirror formed by a part of a hollow glass sphere with a reflecting surface created.
For the following mirrors and corresponding object positions, construct ray diagrams. A ray diagram shows the path of light from an object to mirror to an eye. 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. 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. View answer ncert question 12 an object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm.
These ray diagrams depend on the position of the object. If the object is 12 cm tall, what will be the height of the image. Jul 11, 2011 c ray going towards the centre of curvature c are reflected back along their own paths because they are normal to the mirror. Images formed by convex mirror using ray diagram 1 object is between infinity and pole a image is formed between pole and focus. How to predict where the image of an object is, in a convex mirror. Convex mirrors, geometrical optics from alevel physics tutor. Phys 4d solution to hw 4 university of california, san diego. Explore more about concave mirror ray diagram, convex mirror ray diagram and much more at. Through the focal point to the mirror the ray will reflect parallel to the principle axis. 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. Curved mirrors and ray diagrams snc2d a concave mirror is a curved mirror with the reflecting. Lenses ray diagram construction worksheet teaching resources. A ray diagram for a convex mirror shows that the image will be located at a position behind the convex mirror.
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. Find the position and nature of the image view answer. 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. Feb 27, 2015 a worksheet to construct ray diagrams to show where images are formed by a converging convex lens and a diverging concave lens. Revised rules of reflection a ray travelling parallel to. Look at the lenses in front of you and try to distinguish the different. Optical ray diagram rules for convex mirror any ray traveling parallel to the principal axis is reflected such that it appears to pass through the virtual focus f. Draw a ray diagram to show the image formation in this case. A ray that is parallel to the principle axis, on reflection will pass through the focus. One mark questions convex mirror for seeing traffic at. Ray diagram construction in convex mirrors presented by the path of. Ray diagrams concave mirrors in a 3step process, use three principal rays to draw a ray diagram.
Jun 29, 2015 description of how to draw ray diagrams for convex mirrors for grade 10 science. A concave mirror brings the suns rays to a focus at a distance of 30 cm from the. Mar 09, 2018 ray nq, as it has to be parallel to ray os. The use of these diagrams were demonstrated earlier in lesson 3 and in lesson 4. Images formed by convex mirror using ray diagram class. Here is a set of templates you can use to demonstrate to your students how to draw the ray diagrams for concave mirrors, convex mirrors, converging lenses and diverging lenses. Draw ray diagrams showing the image formation by a convex mirror when an object is placed a at infinity. 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. Question 1 mention few applications of convex mirror.
Why do we prefer a convex mirror as a rearview mirror in vehicles. Grade 8 science ray diagrams for concave mirrors the incident. Worksheets are synchronized to readings from the physics classroom tutorial and to sublevels of the minds on physics internet modules. Ray diagrams concave mirrors 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. Mirror diagrams can be confusing to students, but this foldable and bundled lesson will put all the information in one place and at their fingertips. The image on a convex mirror is always virtual rays havent actually passed through. An image which can be formed on the screen is known as real image and the one which cannot be formed on screen is known as a virtual image. We can use ray diagrams to work out why convex mirrors produce diminished. Once students have identified the rough location of images using ray diagrams, students will use the mirror equation to solve for di and hi. Ray diagrams have been a valuable tool for determining the path taken by light from the object to the mirror to our eyes. Although, may also be useful for other boardsalevel. Ray diagrams for the convex mirror basic physics tutorials.
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