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