Geometric and clinical optics opt 232 ophthalmic optics. In this lesson we revise what happens when light is refracted and undergoes total internal reflection. Geometric optics join helen and her guest, thabiso, as they discus how to teach geometric optics. Compiled and solved problems in geometry and trigonometry. Geometric optics itself is a few concepts, and any good text will cover it. We have already studied that the geometric centre of a spherical mirror is called its pole while. The cornea is a converging lens located at the outer surface of the eye with fixed focal length approximately equal to 2 cm. The reasons are obvious but seldom do we think of them. General physics 2 geometric optics 11 total internal reflection incident angle where refracted angle. Siyavulas open physical sciences grade 11 textbook, chapter 5 on geometrical optics covering snells law. B the greater the density of the medium, the smaller the speed of the wave in the medium 4. If you dont see any interesting for you, use our search form on bottom v.
Textbooks for high school students studying the sciences physics grades 10 12. Total internal reflection is a very useful natural phenomenon since it can be used to confine light. Explain how it can sparkle with flashes of brilliant color when illuminated by white light. This guides the philosophy underlying the teaching and assessment of the subject in grade 11. Doc scientia physics answer book grade 11 93 unit 1.
If you neglect one day of work, after the next class you will have twice the work. Nov 26, 20 sheeps eye dissection parts and function. Provide clarity on the depth and scope of the content to be assessed in the commonnational grade 11 examination in physical sciences. Optics notes topics in these notes are wave properties polarization focal lengths geometrical optics. I also just learned this week about several ebooks for ipad that incorporate videos and animations to enhance learning. A guide to geometric optics teaching approach in this series we explain geometric optics. Add colinear vectors along the parallel and perpendicular direction to obtain the net parallel. These lessons have been designed to be used as a teaching tool, either as individual lessons or as a series, or they can be used as a revision tool. Geometric optics grade level 11 12 overview students will investigate what parameters can be varied to focus a lens or lens pair at different distances and magnifications. Jun 19, 2016 on this page you can read or download grade 11 geometric optics questions in pdf format. Physical optics lecture notes pdf 44p this note covers the following topics.
Forces and motion grade 11 basics of forces and drawing freebody diagrams. Geometric optics 11th12th grade trinity university. Well, before you get too excited, we have not actually done the show for grade 11 geometric optics yet. A upright, magnified and real b upright, the same size and virtual c inverted, demagnified and real d inverted, magnified and virtual. Optics benjamin crowell book 5 in the light and matter series of introductory physics textbooks. If the light ray hits the boundary at an angle which is not perpendicular to or parallel to the surface, then it will change direction and appear to bend.
Geometric and clinical optics opt 232 ophthalmic optics use of technology description. Grade 11 university physics supplementary workbook press on. Textbooks for high school students studying the sciences physics grades 10 12 version 0 november 9, 2008. Textbookworkbooks to learn geometrical optics physics. Iin my geometric and clinical optics class, i use a webbased, interactive demonstration of ray tracing for thin lenses and mirrors. Geometric optics john yamrick 1,996 view carl zeiss sports optics 885 view worcester fiber connectivity report worcester 944 view typical electrical drawing symbols and 1,585 view. When an object is placed in front of a plane mirror the image is. An optical image may be regarded as the apparent reproduction of an object by a lens or mirror system, employing light as a carrier. The questions are about reflection, refraction, critical angle, lenses, reflectors, light rays propagating through different mediums, refractive index of materials, etc. The key to success in your grade 11 physics class is your homework. Light rays are lines which are perpendicular to the lights wavefronts. Light waves can be bent and reflected to form new and sometimes altered images. These questions may be used to practice for the sat physics test.
Light rays are lines which are perpendicular to the lights. They will be able to describe the differences in the ways that an eye, a camera, and a. That show is scheduled for 17 april and well be chatting to thabiso ndaba. Grade 11 subject content time marks english home language paper 1 a. Understanding how light rays can be manipulated allows us to create better contact lenses, fiber optic cables, and high powered telescopes.
Grade 10 and 11, including calculations, aerial and othophotos and gis. Nasa goddard photo and video, via flickr learning objectives 25. Geometric optics 2d and 3d refraction electricity current electricity electrostatics. The measure of a regular polygons interior angle is four times bigger than the measure of its external angle. This paper formed part of a larger study, which aimed to evaluate the effectiveness of an optics teaching module in enhancing grade 11 learners conceptual understanding about optical phenomena. Light and geometric optics overall expectations by the end of this course, students will. That is, the normal is along the radius, the line joining the centre of curvature of the mirror to the point of incidence. Siyavulas open physical sciences grade 11 textbook, chapter 5 on geometrical optics covering summary. The importance of focal lengths is their use in geometrical optics which will be disussed in the next section. One of the fundamental equations in geometric optics is. Is it possible that total internal reflection plays a role in rainbows. Light and geometrical optics test 1 kaplan 3 passage i questions 16 figure 1 shows a simplified model of the eye that is based on the assumption that all of the refraction of entering light occurs at the cornea. Apr 12, 2014 well, before you get too excited, we have not actually done the show for grade 11 geometric optics yet. Snc 2d light and geometric optics convex mirrors extra practice worksheet a draw a ray diagram for each to locate the image.
A highquality diamond may be quite clear and colorless, transmitting all visible wavelengths with little absorption. A the smaller the speed of the wave in the medium, the greater the density of the medium 3. This document is highly rated by class 12 students and has been viewed 21901 times. Archimedes and other ancient greek thinkers made original contributions but we mention here heron of alexandria c.
Chapter notes geometrical optics, class 12, physics iit. Optics questions with solutions and explanations at the bottom of the page. On this page you can read or download grade 11 geometric optics questions in pdf format. Pdf exploring grade 11 learners conceptual understanding. Refraction occurs at the boundary of two media when light travels from one medium into the other and its speed changes but its frequency remains the same. The use of tir huge sections of 8ft wide and 1,574ft 480m long pipe have washed up on the norfolk coast authorities said the pipes came loose as they were being tugged to algeria for a building project there were 12 pipe segments that were being taken to north africa, two more have washed up at eccles a maritime and castguard agency spokesman said the pipes pose no danger of. Nothing in the world can take the place of persistence. One of the most common applications of total internal reflection is in fibre optics. An optical fibre is a thin, transparent fibre, usually made of glass or plastic, for transmitting light. Ray optics and optical instruments 311 this case is to be taken as normal to the tangent to surface at the point of incidence.
This series revises previous knowledge on reflection in plain mirrors. Other articles where geometrical optics is discussed. Optics notes massachusetts institute of technology. The ray aspect of light list the ways by which light travels from a source to another location. An entire image is generally produced simultaneously, as by the lens in a camera.
1195 1075 1548 1248 1098 791 826 131 840 1013 1521 373 89 1273 846 1018 1241 575 714 650 475 1276 930 941 36 295 399 755 961 561 498 1279