Physics 10 reflection and refraction slide 1 slide 2 slide 3 slide 4 slide 5 slide 6 slide 7 slide 8 slide 9 slide 10 slide 11 slide 12 slide slide 14 slide 15 slide 16 slide 17 slide 18. Physics reflection and refraction the naturalartificial agent that kindles sight and makes things visible is known as light. The critical angle is calculated by finding the incident angle that has a 90 refraction. As shown below, an electromagnetic wave is a transverse wave consisting of mutually perpendicular oscillating electric and magnetic fields. If an ocean wave approaches a beach obliquely, the part of the wave farther from the beach will move faster. Refraction is described by snells law also known as the snelldescartes law and the law of refraction, which states that for a given pair of media and a wave with a single frequency, the ratio of the sines of the angle of incidence. Reflection and refraction when light hits a surface, one or more of three things may happen. Now lets examine reflection and refraction at a curved surface. The physics classroom grants teachers and other users the right to print this pdf document and to download this pdf document for private use. Light rays change direction when they reflect off a surface, move from one transparent medium into another, or travel through a medium whose composition is continuously changing.
Remove the glass block, draw in the emergent ray and the refracted ray and measure the. Get conceptual physics practice page chapter 28 reflection and refraction answers pdf file for free from our online library. Light reflection and refraction 161 let us recall these laws i the angle of incidence is equal to the angle of reflection, and ii the incident ray, the normal to the mirror at the point of incidence and the reflected ray, all lie in the same plane. Prism and rainbow formation are the examples of refraction of light. Light reflection and refraction notes for class 10. Light reflection and refraction jsunil tutorial cbse. Visit for all ncert solutions in text and videos, cbse syllabus, note and many. The reflected light from an object looks as through it came from a point behind. Image if light ray coming from an object meets or appear to meet at a point after reflection or refraction, then this point is called image of the object. Reflection and refraction are two different properties of light. Physics 18 reflection and refraction free download as powerpoint presentation. What is the maximum angle of refraction when a ray of light is refracted from glass into air.
Jan 19, 2020 this topic covers reflection and refraction of light of o level physics. Refraction of light is the change in direction of a light ray when it travels from one medium to another. Physics classroom light refraction and lenses answer key. This makes the road appear reflecting, giving an illusion of water covering the road. Conceptual physics practice page chapter 28 answer key pdf download e31cf57bcd conceptual physics chapter 9 energy 47 conceptdevelopment 91 practice page. Aqa gcse physics p1 reflection refraction ppt teaching. Reflection and refraction are two commonly observed optical properties of light. Mcq, class 10 science class 10 notes edurev is made by best teachers of class 10. In other cases it is traveling through glass and entering air. Derive, recall and apply the relation between critical angle and refractive indices. Learn refraction physics light with free interactive flashcards. Includes practical along with tiered exam questions and markschemes.
Applications of refraction of light physics special. A ray of light is incident normally on a glass slab. Prepared by teachers of the best cbse schools in india. This table might not contain all possible associated or supported file types or may contain incorrect data. Rays of light parallel to the principal axis after refraction get diverged and appear o come from a point on. This is a good description as long as the waves do not pass through small openings compared to. Midwayusa is a privately held american retailer of various hunting and outdoorrelated products. Whenever a light strikes the surface of some material at an angle, part of the wave is reflected and part is transmitted or absorbed. Page 3 class 10 th physics light reflection and refraction the. Apr 09, 2020 refraction, in physics, the change in direction of a wave passing from one medium to another caused by its change in speed. When light passes into a more optically dense medium with the angle of incidence. The reflection and refraction of waves primarily water waves, using simply resources version of ripple tanks.
In this lab you will be exploring the first part of optics, the reflection and refraction of light at a plane flat. Apr 25, 2015 physics reflection and refraction mr sai mun. There are two different kinds of curved surfaces that you will be dealing with for reflection. A group of rays of light emitted by a source of light is called a beam of light. This occurs when a wave travelling in one medium strikes the surface of a different medium and changes direction so that it returns back into the medium in which it was originally travelling in. The objective of this quiz is to find out your preknowledge on reflection and refraction. A line drawn in the direction of propagation of light is called a.
Download file pdf physics classroom light refraction and lenses answer key physics classroom light refraction and lenses answer key refraction movie both reflection and refraction occur as a light ray reaches a boundary. Reflection by plane mirror laws of reflection group experiment lesson 3 2. Chapter 35 refraction a powerpoint presentation by paul e. Reflection and refraction quiz questions proprofs quiz. The angle of reflection is the angle between the reflected ray and the normal. Reflection is the abrupt change in the direction of propagation of a wave that strikes the boundary between two different media. Definition properties examples reflection the change in direction of a wave, such as a light or sound wave, away from a boundary the wave encounters e. The index of refraction of red light in water is about 1. Remove all pins and draw the line through pin3 and pin4. How much time does the sun take to shift by 10 when viewed from the earth. This applet is a sort of tutorial which explains the reflection and the refraction of waves by the principle of huygens. Gcse physics powerpoint and accompanying resources covering.
At least some part of the incoming wave remains in the same medium. Reflection and refraction, such as snells law and changes in wavelength and speed. Reflection is the change in direction of a wavefront at an interface between two different media. Reflection and refraction of a plane wave at oblique incidence.
Conceptual physics practice page chapter 28 answer key pdf. Refraction is described mathematically by snells law. The index of refraction, n no units, is defined as the ratio of the speed of light in a vacuum and the speed of light in the. In fact, for most materials the smaller the wavelength of the light, the larger the index of refraction, which means smaller wavelength light will bend more than larger wavelength light will in most materials. The amount that the ray of light will refract is related to the index of refraction of the medium. On each diagram, sketch the approximate path of the light in the second medium. Light rays travel in different mediums at different speeds. Reflection and refraction equipment acrylic block set, planeconcaveconvex universal mirror, cork board, cork board stand, pins, flashlight, protractor, ruler, mirror worksheet, rectangular block worksheet, equilateral prism worksheet, converging lens worksheet. For example, waves in deep water travel faster than in shallow. Conceptual physics reflection and refraction assessment. All these waves add up to give specular reflection and refraction, according to the huygensfresnel principle. Pin3 and pin4 mark the position of the refracted ray. Light reflection and refraction teaching resources. A ray is equivalent to a very narrow beam of light, and it.
See fresnels equations these show that reflection depends on angle of incidence, polarization, and refractive index. Comparison table of actions that reflection can perform with each of its associated file type beta. In vacuum, for example, light travels at the speed of 3. To an astronaut in space, the sky will appear to be a violet b red c blue. All books are in clear copy here, and all files are secure so dont worry about it. Reflection, is when the light goes back to the previous medium, but changes direction. In this chapter, we consider the phenomena of reflection, refraction and dispersion of light, using the ray picture of light.
Difference between reflection and refraction with comparison. For the same angle of incidence 45 degree, the angle of refraction in two transparent media 1 and 2 is 20 degree and 30 degree respectively. Figure 2, then 2 is defined as the angle of refraction. One of the most important parameters that measures optical properties of a medium is the index of refraction. Professionals, teachers, students and kids trivia quizzes to test your knowledge on the. We will create web pages of your files on the behalf of you. The phenomena of refraction and refraction of light at a plane surface separating two media of different dielectric properties can be classified into two aspects. Reflection and refraction of emwaves at portland state university. Before starting the quiz, key in your name, class and index number. What are the properties of reflection, refraction and diffraction. You could draw on the angles of incidence if your class find it difficult to use protractors.
Reflection and refraction university of calgary in alberta. Cause of refraction is change in speed of light while entering a different medium. Reflection and refraction multiple choice questions and. The earth takes 24 h to rotate once about its axis. The angle of refraction is the angle between the transmitted ray and the normal. As we develop the connection between incident, reflected, and transmitted light waves, many familiar relationships will emerge naturally e. Due to refraction, the velocity of transmitted light is less than the. Physics notes for class 12 chapter 9 ray optics and optical instruments light. Using the basic laws of reflection and refraction, we. The concepts should be clear which will help in faster learning.
Read online th physics light reflection and refraction book pdf free download link book now. As the angle of incidence increases, more and more light. View pdf cbse class 10 physics worksheet light reflection and refraction cbse class 10 physics worksheet light reflection and refraction practice worksheets for cbse students. Instructors are permitted to make and distribute copies for their classes. The law of reflection states that, on reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray. Physics notes for class 12 chapter 9 ray optics and.
This document is highly rated by class 10 students and has been viewed 44459 times. This implies that the mirror has an associated radius of curvature, r. Conceptual physics reflection and refraction assessment answers download conceptual physics reflection and refraction assessment answers if you ally obsession such a referred conceptual physics reflection and refraction. State the laws of reflection and refraction, describe examples and apply the laws to simple examples involving plane boundaries. The angle of refraction can be greater than, less than, or. Substances that have a high index of refraction n have a low critical angle. This is because the light is not always travelling in the same material, and so the speed of light changes, and the path adjusts to follow the path of least time. Isaac physics a project designed to offer support and activities in physics problem solving to teachers and students from gcse level through to university. Light reflection and refraction class 10 science physics. The law of reflection states that the angle of incident ray equals the angle of the reflected ray, or. The simplest case for reflection at normal incidence, where polarization doesnt matter tells us that the reflectance is. To observe the behavior of reflected and refracted light rays and to determine that such observed results confirm the stated laws of reflection and refraction. These laws of reflection are applicable to all types of reflecting surfaces. 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.
Th physics light reflection and refraction pdf book. Physics 18 reflection and refraction refraction optics. Reflection and refraction 17 be scattered away from its original direction figure 2. Light reflection and refraction notes for class 10 formulas download pdf. Reflection and refraction physics 212 lab mirrors, which means that the mirror is part of the arc of a large circle. Learning the important concepts is very important for every student to get better marks in examinations. Nov 27, 2019 reflection and refraction are two different properties of light. Find i the position ii the magnification and iii the nature of the image formed.
Can be delivered in various ways depending on ability of class or if nonspecialist teacher. It is natural to treat the propagation of light in terms of rays. Navy supplement to the dod dictionary of military and associated terms pdf. Choose from 500 different sets of refraction physics light flashcards on quizlet.
Reflection and refraction of a plane wave at oblique incidence let us consider a plane wave that obliquely incidents at the boundary of two media that are characterized by their permittivity and permeability see figure 1. Equivalent to american high school diploma subtopics. Currently includes only ks3 material but can easily be edited for ks4 by adding definitions of angle of refraction, etc. Plane mirror on block, laser, corkboard, 5 pins, paper, rulerstraightedge, plastic block, semicircular plastic block and protractor. This scattering is caused by the interaction of light with small particles, even atoms or molecules, within the material. Reflection and refraction california state university. Topics from this chapter assessed on the sat physics subject test. Back to top reflection is a change in direction of a wave upon striking the interface between two materials. On the flip side, refraction is when light is absorbed by the medium but the direction and speed is affected. Mcq quiz on reflection and refraction multiple choice questions and answers on reflection and refraction mcq questions on reflection and refraction objectives questions with answer test pdf for interview preparations, freshers jobs and competitive exams.
Refraction it differs from reflection in that the light will pass through from one transmission medium to another. Download cbse class 10 physics light reflection and refraction notes, physics chapter notes, cbse class 10 physics light reflection and refraction notes. Opticsrefraction wikibooks, open books for an open world. Unlike the law of reflection, the angle of incidence and refraction are not always equal. Your support will make this library huge and more helpful to other readers. Chapter 3 reflection and refraction bgu physics department.
Tippens, professor of physics southern polytechnic state university a powerpoint presentation by. Light, reflection, and color characteristics of light light is an electromagnetic wave. May 04, 2012 powerpoint and worksheet used for teaching new aqa gcse physics p1 to a foundation level y10 group. The pdf file below accompanies the refraction interactive. Reflection and refraction physics metropolia confluence. Explanations of each of the steps are provided in the text box.
Illustrating reflection and refraction, including total internal reflection. In physics, refraction is the change in direction of a wave passing from one medium to another. Read and download pdf ebook conceptual physics practice page chapter 28 reflection and refraction answers at online ebook library. So if you cant see the driver, the driver cant see you. The basic difference between reflection and refraction is that reflection of light is the process in which light bounces back on striking the surface, while refraction of light is the process in which light changes its direction as it passes from one medium to another medium. A line drawn in the direction of propagation of light is called a ray of light. Conceptual physics practice page chapter 28 reflection. This is introductory lecture on a cbse class 10th topic light reflection and refraction. May 27, 2010 six simple diagrams showing the key points of the topic of light, drawn for revision in year 8. Knowing the difference between reflection and refraction will help you understand basic phenomenon of science. Pin3 and pin4 will be in line with the images of pin1 and pin2. Using indexes of refraction, snells law also known as the law of refraction takes the form sin isin r nrni, or ni sin i nr sin r. If the object changes direction during this process it is referred to as refraction.
In some cases the ray is traveling through air and entering glass. Rays of light parallel to the principal axis after refraction through a convex lens meet at a point converge on the principal axis. Reflection this area of physics is frequently considered to be easy and straightforward, this is because. Using that the speed of light is v c n we deduced that. The light may be reflected back from the surface, transmitted through the material in which case it will deviate from its initial direction, a process known as refraction or absorbed by the material if it is not transparent at the. Physics 100 multiple choice questions with answer for ssc. Reflection and refraction of light o level mini physics. The physics now that you have completed all of the labs dealing with circuits, you will now move on to the next area of physics, light and optics. Une onde plane est renvoyee par le dioptre vers le milieu 1. R the law of refraction snells law relates how a ray of light will behave when passing from one media to the other. If you need more information please contact the developers of reflection attachmate corporation, or check out their product website. Light reflection and refraction notes for class 10 download pdf. The plane containing both the normal to the surface and the direction of propagation of the incident. This site is like a library, you could find million book here by using search box in the header.