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. I also just learned this week about several ebooks for ipad that incorporate videos and animations to enhance learning. Optics questions with solutions and explanations at the bottom of the page. B the greater the density of the medium, the smaller the speed of the wave in the medium 4. Light and geometric optics overall expectations by the end of this course, students will. One of the fundamental equations in geometric optics is. Optics notes massachusetts institute of technology. Siyavulas open physical sciences grade 11 textbook, chapter 5 on geometrical optics covering snells law. That is, the normal is along the radius, the line joining the centre of curvature of the mirror to the point of incidence.
Chapter notes geometrical optics, class 12, physics iit. That show is scheduled for 17 april and well be chatting to thabiso ndaba. They will be able to describe the differences in the ways that an eye, a camera, and a. A upright, magnified and real b upright, the same size and virtual c inverted, demagnified and real d inverted, magnified and virtual. 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.
The cornea is a converging lens located at the outer surface of the eye with fixed focal length approximately equal to 2 cm. Doc scientia physics answer book grade 11 93 unit 1. Geometric optics 11th12th grade trinity university. Understanding how light rays can be manipulated allows us to create better contact lenses, fiber optic cables, and high powered telescopes. Other articles where geometrical optics is discussed. One of the most common applications of total internal reflection is in fibre optics. Is it possible that total internal reflection plays a role in rainbows. The ray aspect of light list the ways by which light travels from a source to another location. Pdf exploring grade 11 learners conceptual understanding. Siyavulas open physical sciences grade 11 textbook, chapter 5 on geometrical optics covering summary. One will probably not need to calculate the focal length of a lens but if one does it will probably be a spherical mirror whose focal length is given by. Well, before you get too excited, we have not actually done the show for grade 11 geometric optics yet. Total internal reflection is a very useful natural phenomenon since it can be used to confine light. An optical fibre is a thin, transparent fibre, usually made of glass or plastic, for transmitting light.
Textbookworkbooks to learn geometrical optics physics. Geometric and clinical optics opt 232 ophthalmic optics use of technology description. In this lesson we revise what happens when light is refracted and undergoes total internal reflection. Iin my geometric and clinical optics class, i use a webbased, interactive demonstration of ray tracing for thin lenses and mirrors. A the smaller the speed of the wave in the medium, the greater the density of the medium 3.
Grade 11 subject content time marks english home language paper 1 a. Geometric optics itself is a few concepts, and any good text will cover it. Nov 26, 20 sheeps eye dissection parts and function. Optics notes topics in these notes are wave properties polarization focal lengths geometrical optics. 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. In johns show shown live on 10 april we spoke briefly about whats currently happening in other grades. When an object is placed in front of a plane mirror the image is. An entire image is generally produced simultaneously, as by the lens in a camera. The reasons are obvious but seldom do we think of them. An optical image may be regarded as the apparent reproduction of an object by a lens or mirror system, employing light as a carrier.
Textbooks for high school students studying the sciences physics grades 10 12. Snc 2d light and geometric optics convex mirrors extra practice worksheet a draw a ray diagram for each to locate the image. Geometric and clinical optics opt 232 ophthalmic optics. On this page you can read or download grade 11 geometric optics questions in pdf format. The key to success in your grade 11 physics class is your homework. We have already studied that the geometric centre of a spherical mirror is called its pole while. If you neglect one day of work, after the next class you will have twice the work. Textbooks for high school students studying the sciences physics grades 10 12 version 0 november 9, 2008. These questions may be used to practice for the sat physics test. Provide clarity on the depth and scope of the content to be assessed in the commonnational grade 11 examination in physical sciences. Grade 11 university physics supplementary workbook press on. 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. 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. Nasa goddard photo and video, via flickr learning objectives 25.
Optics benjamin crowell book 5 in the light and matter series of introductory physics textbooks. Jun 19, 2016 on this page you can read or download grade 11 geometric optics questions in pdf format. Light rays are lines which are perpendicular to the lights. The measure of a regular polygons interior angle is four times bigger than the measure of its external angle. Ray optics and optical instruments 311 this case is to be taken as normal to the tangent to surface at the point of incidence. Light waves can be bent and reflected to form new and sometimes altered images. Forces and motion grade 11 basics of forces and drawing freebody diagrams. Geometric optics 2d and 3d refraction electricity current electricity electrostatics. Apr 12, 2014 well, before you get too excited, we have not actually done the show for grade 11 geometric optics yet. Geometric optics join helen and her guest, thabiso, as they discus how to teach geometric optics. If you dont see any interesting for you, use our search form on bottom v. Which of the following types of electromagnetic waves travels fastest in a vacuum. The questions are about reflection, refraction, critical angle, lenses, reflectors, light rays propagating through different mediums, refractive index of materials, etc.
Grade 10 and 11, including calculations, aerial and othophotos and gis. 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. Compiled and solved problems in geometry and trigonometry. 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. Geometric optics 2d and 3d refraction electricity current electricity electrostatics electromagnetism. A guide to geometric optics teaching approach in this series we explain geometric optics. This guides the philosophy underlying the teaching and assessment of the subject in grade 11. General physics 2 geometric optics 11 total internal reflection incident angle where refracted angle. Light rays are lines which are perpendicular to the lights wavefronts. A highquality diamond may be quite clear and colorless, transmitting all visible wavelengths with little absorption. 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. This series revises previous knowledge on reflection in plain mirrors. Explain how it can sparkle with flashes of brilliant color when illuminated by white light. Siyavulas open physical sciences grade 11 textbook, chapter 5 on geometrical optics.
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