Become familiar with the nature of the images formed by plane and spherical mirrors. Lenses remembering the basics of mirrors puts you half ways towards fully understanding lenses as well. Physics 106 lab lenses and mirrors physics dept home. Just how much do you know about the different types of lenses and mirrors. Discover the relationships among object position, image. The focal length f of a lens can be found quite accurately by moving an illuminated object infront of a lens so that an image is cast on a screen. A compound microscope has two convex lenses, separated by 10. The image distance is the distance from the image to the mirror or lens. Uses of convex lens,concave lens,convex mirrors,concave. The primary goals are to understand the relationship between image distance, object distance, and image scale. Written by teachers for teachers and students, the physics classroom provides a wealth of resources that meets the varied needs of both students and teachers. With a converging lens, paraxial rays that are parallel to the principal axis converge to the focal point, f. The physics classroom serves students, teachers and classrooms by providing classroomready resources that utilize an easytounderstand language that makes learning interactive and multidimensional.
The physics is nearly identical to that of the spherical mirrors we recently looked at. Light ray rules for convex lens and concave lens are discussed. The purpose of this lab is to introduce students to some of the properties of thin lenses and mirrors. Download mirrors and lenses lens focal length, the lens and mirror software of genius maker, to solve and visualise problems of optical physics pertaining to plain glass, convex lens, concave lens, plain mirror, convex mirror and concave mirror. Pdf optical images due to lenses and mirrors researchgate. Lenses and how brain adapts to the image reflected or absorbed. Understanding how light rays can be manipulated allows us to create better contact lenses, fiber optic cables, and high powered telescopes. Here, the newspaper is the object and the focal point is where the image needs to be located. A convex lens gives a real, inverted image if the object is outside the focal length of the lens.
How can we locate the image formed by a concave mirror for different positions of the object. Images in concave mirrors appear upside down, real and reduced. The physics classroom teacher toolkits lenses image formation by lenses the image formation by lenses toolkit provides teachers with standardsbased resources for designing lesson plans and units that pertain to such topics as refraction of light by lenses, formation of images by lenses, characteristics of images formed by lenses, and the. Optics is an exciting area of study, but as with most areas of physics it requires a variety of mathematical tools to be fully appreciated. Mirrors and lenses lens focal length optics software. It is proven in introductory physics textbooks1 that the image and. When light falls on a highly polished surface like a mirror most of the light is sent back into the same medium. If you see a corner lets let me draw a hallway with corners youll sometimes see mirrors let me do it the other way youll sometimes see mirrors so that people well, the mirror might be out here so that you can see people as theyre coming around the corner. Sign convention for spherical mirrors and thin lenses. Difference between mirror and lens with comparison chart. Concave mirrors curve inward, creating a focal point in front of the mirror. Kids learn about lenses and light in the science of physics including concave, convex, converging, diverging, focal point, meniscus, and plano lenses. If you are in search of the notes of chapter 3 spherical mirrors and lenses physics class 10 then you are at right page because here we have shared the 10th physics notes chapter 3 spherical mirrors and lenses pdf download online.
Convex lenses, geometrical optics from alevel physics tutor. A free powerpoint ppt presentation displayed as a flash slide show on id. A lens can focus light to form an image, unlike a prism, which refracts light without focusing. Uses of convex lens,concave lens,convex mirrors,concave mirrors lenses and mirrors applications study for exams optics,physics. Rays of light parallel to the principal axis after reflection from a convex mirror get diverged and appear to come from a point behind the mirror. And you see these types of mirrors all the time, especially around corners. The same sort of rules apply, just with a few modifications. Mirrors and lenses physics science homework resources. All four types of convex lens are converging lenses. Lenses lenses refract light in such a way that an image of the light source is formed. All downloads are covered by a creative commons license.
Physical science ultimate bundle both complete interactive notebook and task card bundle physical science task ca. Light parallel to the principal axis a converges toward f after reflection from a concave mirror, and b diverges from f after reflection from a convex mirror. Geometric optics converging lenses and mirrors mercer physics. Lenses and mirrors applications study for exams optics,physics. In addition, for spherical mirrors the focal length is half the radius of curvature of the reflecting surface. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Telescopes, microscopes, cameras, projectors, your eyes, all have one thing in common. By taking readings of image and object distances for different positions, a graph can be drawn. With a concave mirror, the image may be either real or virtual. The physics classroom grants teachers and other users the right to print this pdf document and to download this pdf document for private use. Optical bench, light source, concave mirror, convex lens, 1 full length viewing screen, 1 half screen, ruler. The focal length, f, is the distance between f and the lens.
We look at the image formation by these spherical lenses using ray diagrams. The pdf version of the teacher toolkit on the topic of vectors is displayed below. Geometric optics converging lenses and mirrors physics lab iv objective in this set of lab exercises, the basic properties geometric optics concerning converging lenses and mirrors will be explored. Mirrors and lenses reflection we describe the path of light as straightline rays reflection off a flat surface follows a simple rule. If youre seeing this message, it means were having. Convex parabolic mirrors video mirrors khan academy. Ppt mirrors and lenses powerpoint presentation free to. But the rays of the mirror now cross the lenses from right to left. A mirror will have only one focal point, which is in front of the mirror. In this science printable, students will also define hyperopia and myopia and identify the type of lens used to correct each condition. That is, they bring parallel rays of light to a focus, producing a real image. This is a zipped folder containing a pdf and an editable version of each of the following. Ncert solutions for class 10 science chapter 10 free pdf. First we need the object and image distances away from the eyeglass lenses.
The inspirations will go finely and naturally during you contact this pdf. A lens is a transparent device with two curved surfaces, usually made of glass or plastic, that uses refraction to form an image of an object. The most apparent distinction between mirrors and lenses are that mirrors reflect light rays light bounces back while light rays are refracted passthrough through a lens. Keep in mind that for an object to be considered a lens it must be made of a transparent material that has an index of refraction higher than air. We will talk about how these things work using the following. It will give a virtual upright image if the object is within the focal length.
Alevel physics, section thermal physics, 6 chapters, 34 pages, 1. A spherical mirror consists of a small section of the surface of a sphere with one side of the surface covered with a polished reflecting material, usually silver or aluminum. Lecture notes optics pdf 57p this note covers the following topics. However, when you move closer to the mirror, the image enlarges moving closer to the mirror rightside up, virtual image.
The image distance for a plane mirror is always equal to the object distance because the magnification is 1. Homework resources in mirrors and lenses physics science. The type of images are the same, real, virtual, inverted, upright, etc its all the same. C with the data of this image formed by the lenses, use them as if it were an object, and calculate with the mirror equation the position of the image formed by the mirror. Two prisms can bend light toward the principal axis acting like a crude converging lens but. Ncert solutions for class 10 science chapter 10, light reflections and refraction solutions give candidates the answer to questions that are asked at the. The physics convex lenses are converging lenses, and concave lenses are diverging lenses. Learn to distinguish between real and virtual images. Scribd is the worlds largest social reading and publishing site. Download pdf geometrical optics kota study material. Ncert solutions for class 10 science chapter 10 light reflection and refraction.
Use the lensmakers equation to determine the focal length of a thin lens. The goal of the experiment is to be able to analyze ray diagrams so as to determine fundamental properties of image formation. However, the document should not be uploaded to other servers for distribution to and or display by others. Find the distance from the object to the lens, and the distance of the image to the lens, by subtracting out the distance from the lens to the eye. At the end of the presentation, the ss will be able to correctly differentiate between the three types of mirrors. Lenses and mirrors activity after using reference materials to answer questions about lenses and mirrors, students will label each shape as convex or concave. Finally, the magnification of a mirror or lens is given by the formula hh ss where h is. The difference between mirror and lens is that mirror means a smooth and highly polished glass surface, through which images are formed by reflection, as the light falls on it. Mirrors, which have curved surfaces designed to reflect rays, also form images. Use the classic optics bench with lenses and mirrors with the nonstandard realtime ray diagram to learn all about the science of light. Download pdf geometrical optics kota study material for. However, the document should not be uploaded to other servers for distribution to andor display by others. May 07, 2020 just how much do you know about the different types of lenses and mirrors.
Mar 03, 2019 convex and concave lenses are spherical lenses. There are two types of lenses, and they each change the perspective of how things look. At the end of the presentation the ss will be able to differentiate. Goals at the end of the presentation the student will be able to correctly differentiate between absorption, reflection and refraction. In this video i will introduce the objects, focal points, images of the converging and diverging lenses, and concave and convex mirrors. If the object and image are the same distance from the mirror and magnification is 1, then as the object approaches the mirror at a certain speed, the image is approaching the plane mirror at the same speed, therefore you approach the image more quickly than you approach. Light waves can be bent and reflected to form new and sometimes altered images. A system of lenses andor mirrors forms an image by gathering rays from an object and then causes them to converge or diverge. The object distance is the distance from the object to the mirror or lens. Concave mirrors and convex mirrors image formation, ray diagram. A lens is a curved piece of glass or plastic designed to refract light in a specific. Jun 16, 2016 in this video i will introduce the objects, focal points, images of the converging and diverging lenses, and concave and convex mirrors.
Lenses in optics applications types of lenses physics. In this trivia questions quiz, you will get to learn some more about the different lenses and mirrors and how they differ from each other. These are free to download and to share with others provided credit is shown. Ifthe outside, or convex surface, is silvered, we have a convex mirror. Lenses and mirrors activity physics printable 6th12th.
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