If the direction of the wave is at an angle other than. The physics of polarization egidio landi deglinnocenti department of physics and astronomy university of florence, italy. The phenomenon occurs if the angle of incidence is greater than a certain limiting angle, called the critical angle. Summary notes, key points, flashcards, videos and past exam questions by topic for edexcel physics as and alevel topic 5 waves and particle nature of. Booklet of questions were compiled from past paper questions from 2002 2009 from old scheme this is a work in progress. Reflection and refraction questions practice khan academy. Jan 07, 2017 6 videos play all waves a level physics science shorts 8. Geometrical optics please remember to photocopy 4 pages onto one sheet by going a3a4 and using back to back on the photocopier contents. Sheets to help students to learn and revise reflection and refraction for a level physics. Isaac physics a project designed to offer support and activities in physics problem solving to teachers and students from gcse level through to university. Reflection and refraction of light o level mini physics. A good knowledge of basic physics and some wellrounded mathematics is recommended. Refraction is a phenomenon that is exhibited by wave when it travels from one medium to another.
Science class 12 physics india ray optics and optical instruments. The critical angle is the minimum angle of incidence, for a given material, at which rays of light are totally internally reflected. Refraction absolute refractive index is a measure of optical density n so the smaller the n of a substance, the greater the speed of light in that substance. The index of refraction for the extraordinary ray is a continuous function of direction. Notes, flashcards, videos and past exam questions by topic for aqa physics alevel section 3 waves. For even more amazing aqa alevel physics exam prep, dont miss. In the figure, n 1 and n 2 represent the indices of refraction for the two media, and.
Reflection revision reflection is the bouncing of light rays off a surface reflection from a mirror. Refraction revision refraction is the bending of light when it enters from one transparent medium into another. One of the most important parameters that measures optical properties of a medium is the index of refraction. A full set of a level physics notes free to download. Refraction through the lenses alevel digital teachers. Jan 19, 2020 this topic covers reflection and refraction of light of o level physics. The account of snells law went unpublished until its mention by christiaan huygens in his treatise on light.
Covers quantum waves, sound waves, and light waves. Contents properties of waves definitions, equations, superposition, phase difference, equation of a wave 3,6 huygens construction introduction, huygens postulate, refraction, interference. Determine the index of refraction, given the speed of light in a medium. This worksheet ensures that students are comfortable with manipulating snells law and choosing the appropriate refractive indexes to use in questions. Click to read the comprehensive a level physics revision notes. We also provide a pdf that teachers can use under the same conditions. Physics revision site recommended to teachers as a resource by aqa, ocr and edexcel examination boards also recommended by bbc bytesize winner of the iop web awards 2010 cyberphysics a physics revision aide for students at ks3 sats, ks4 gcse and ks5 a and as level. Light rays travel in different mediums at different speeds. Alevel physics advancing physicsrefraction wikibooks, open. The book is intended for a level courses which is an ukbased syllabus, but it can be adapted for suitable needs.
The speed of light is determined by the medium material through which the light is travelling. Dec 25, 2015 refraction of light is the change in direction bending of light rays when it passes from one optically transparent medium to another. List of limitations and improvements of physics lab experiments 1. Light travels through space at a speed of 3x108 ms1 and in straight lines ignoring relativity theory, etc.
First law of refraction states that the incident ray. Users are also granted the right to copy the text and modify it for their own use. Preface this book provides an introduction to the eld of optics from a physics perspective. Ace your physics here with revision notes and practice questions for gce oa level. When this happens the angle of incidence is called the critical angle q c. It is caused by the different speeds of light in different media. Apr 08, 2015 the best physics as and a level notes, revision guides, tips and websites compiled from all around the world at one place for your ease so you can prepare for your tests and examinations with the satisfaction that you have the best resources available to you. Contents properties of waves definitions, equations, superposition, phase difference, equation of a wave 3,6 huygens construction introduction, huygens postulate, refraction, interference youngs fringes. Reflection this area of physics is frequently considered to be easy and straightforward, this is because. In kinematics forces causing motion are disregarded while dynamics deals with motion of objects and the forces causing them. Refraction a2levellevelrevision, physics, particles. Geometrical optics please remember to photocopy 4 pages onto one sheet by going a3a4 and using back to back on the photocopier.
Feb 22, 2017 6 videos play all waves a level physics science shorts ultrafast electron diffraction. Physics refraction of light through a prism prism is a triangular glass, which has two triangular bases and three rectangular lateral surfaces as shown in the image given below. Refractive index refraction of light higher physics. Refraction of light rays, examples and solutions physics. Light can bounce off the surface of the material reflection. The index of refraction for the ordinary ray is independent of direction. When a ray of light goes from a material into an optically less dense material like air. Pdf a level questions and answers physics download full.
Download pdf, for correction, addition and inquiry send comments. Pdf a level physics questions and answers pdf a level physics questions by topic kidney questions with markschemes a level physics revision a level physics revision edexcel a level physics revision guide a level physics revision notes a level physics revision notes pdf a level physics textbook pdf a. Total internal reflection, in physics, complete reflection of a ray of light within a medium such as water or glass from the surrounding surfaces back into the medium. Refraction the change in direction or bending of a light wave passing from one transparent medium to another. The two indices of refraction are equal only in the direction of an optic axis. A dedicated page to a level physics revision, with past papers, worksheets and practice questions all relevant to the new a level physics exams. One of the most important parameters that measures optical properties of a. When waves cross a boundary between two materials, there is a change of speed called refraction. The greater the optical density of the medium, the slower the speed of light.
The image and the object are equal distances from the mirror. The angle of refraction can become 90 o and the ray of light travels along the boundary between the two material. A level physics mcqs multiple choice questions and answers mcqs. Alevel help sixth form college application personal statements what you need to know before doing an epq study habits of a students. Two readings of d and l not enoughonly two readings too few readings. Light travels faster in a vacuum than it does in any other medium. However, it may be distributed freely provided it is not sold for profit. Refraction, geometrical optics from alevel physics tutor. To understand the terms reflection and refraction of all waves when we look in a mirror, why is it that the image we see is as we expect. Experiments on refraction, reflection and total internal reflection this video includes some basic experiments on reflection. The law of reflection angle of incidence angle of reflection note. Categories o level, reflection and refraction of light 5 comments post navigation. If the direction of the wave is at an angle other than the normal line, then a change in direction occurs.
A lens is a piece glass bounced by one or two spherical surfaces. A level physics revision past papers and worksheets mme. Refractive index between two media, 1n2 is a ratio of the speed of light in material 1 to that in material 2 1. Optical fibres the refractive index of the glass fibre the core must be higher than that of the plastic coating the cladding for total internal reflection to occur this type of optical fibre is called a stepindex fibre because the refractive index increases in a step from the air on the outside, to the much higher value of the cladding, to the even higher value of the core. The idea lingers in the term optical density, a property of a material that the index of refraction measures. Use these to help revise for exams and to read through as you go along to build understanding. The physics classroom grants teachers and other users the right to print these questions for private use. To measure the refractive index of a material, we pass a beam of light through a boundary between the material and air and measure the angle of refraction. You will be able to learn more about this if you choose to study physics in a level. Waves including sound and light can be reflected at the boundary between two different materials. Although, advance level mathematics is not required.
In other cases it is traveling through glass and entering air. Refraction notes pdf back to a level physics notes page. Free revision guides, questions banks and resources. Physics refraction of light through a prism tutorialspoint. An example to understand this better is that of placing a strawstick in a glass of water wherein it to be bent when viewed from any other angle than 90 0 to the surface. Worksheets are synchronized to readings from the physics classroom tutorial and to sublevels of the minds on physics internet modules. This curriculum was developed for a seniorlevel optics course at brigham young. It focuses primarily on the wave and ray descriptions of light, but also includes a brief intro. The laws of refraction and refractive index explained. The change in direction or bending of a light wave passing from one transparent medium to another. The best physics as and a level notes, revision guides, tips and websites compiled from all around the world at one place for your ease so you can prepare for your tests and examinations with the satisfaction that you have the best resources available to you.
Download pdf, for addition, correction and inquiry send comment. In vacuum, for example, light travels at the speed of 3. The change in speed is described by the refractive index, n of the material. Setting these equal, we can solve for the index of refraction of the honey. In some cases the ray is traveling through air and entering glass. Very helpful for those who want a broad knowledge of physics. We expect that the index of refraction will be greater than that of air and a velocity less than. At the critical angle c, the angle of refraction is 90, as any smaller angle of incidence will result in refraction. The ray nature of light is used to explain how light refracts at planar and curved surfaces. Reflection and refraction sheet for a level physics.
Then the sheet goes on to explain each section in det. Downloads the most comprehensive compilation of past papers grouped in categories. The summary at the start is taken directly from the specification, with everything you need to know. On each diagram, sketch the approximate path of the light in the second medium. Refraction is the change of direction of wave that occurs when its speed changes.
A level physics notes download a full set of free revision notes for. File type pdf answers to refraction woorksheet for physics light, sound, and the nature of reality physics of waves. Snells law and refraction principles are used to explain a variety of realworld phenomena. One pair was quite heavy, made up of glass lenses and the other pair was quite light, made up of plastic lenses. Ocr as and a level physics a delivery guide waves lr7. The bending of the stick is a very common example of refraction. All angles are measured from the normal to the mirror surface. Alevel physics advancing physicsrefraction wikibooks.
The change in speed is described by the refractive index, n of the. Equivalent to american high school diploma subtopics. This book can help to learn and practice a level physics quizzes as a quick study guide for placement test preparation. Sarah has learned from her physics class that glass and plastic have different refractive indexes. The angle between the normal and the refracted ray of light is known as the angle of refraction r. We have included a link to the pdf near the bottom of this page. Incident ray normal reflected ray angle of incidence angle of reflection mirror. List of limitations and improvements of physics lab. The physics classroom website should remain the only website or server from which this document is distributed or displayed. A level help sixth form college application personal statements what you need to know before doing an. Physics notes form 3 free download kcse revision notes pdf. Help with gcse physics, aqa syllabus a as level and a2 level physics. Focusing on snells law and the change in direction of waves. The angle of refraction is the angle the refracted light ray makes with the normal inside the material.
Refraction and lenses the following downloadable pdf files represent a collection of classroomready worksheets pertaining to the topic of refraction and lenses. When light hits a material, three possible things can happen. It is a lens which is thicker in the middle than at the edges. Pearson edexcel level 3 advanced gce in physics 9ph0. Also offering past papers and exam questions by topic for aqa, edexcel and ocr. Refraction through the lenses alevel ragena march 19, 2020 08.
A level physics revision science section on refraction. Reflection of waves reflection and refraction aqa gcse. As it turns out, the schrodinger equation applied to two levels in an atom. A good knowledge of basicphysics and some wellrounded mathematics is recommended. Alevel physics revision notes, videos and more for aqa. Refraction is when light changes velocity when it travels across the boundary between two materials. Refraction through the lenses alevel digital teachers uganda.
1399 585 1241 773 526 608 194 29 1481 934 1496 1119 267 1392 682 344 1483 278 459 1363 1118 521 138 563 895 41 1173 217 1431 916 786 1405 300 181 493 1315