Chapter 10 reflection, refraction, diffraction and interference overview when waves are incident at a boundary between media such as water waves on shallow water encountering a sudden change in depth of the water or light passing either from air to glass or glass to air, part of the wave energy is reflected and part is transmitted. Rather, a sound wave will undergo certain behaviors when it encounters the end of the space or an obstacle. A line drawn in the direction of propagation of light is called a ray of light. Reflection, refraction, and diffraction the behavior of. Waves, including sound and light, can be reflected at the boundary between two different materials. Questions include the reflection of water waves, refraction of water waves, refraction of water waves across various shapes trapezium base, convex base, concave base, square base, refraction in nature formation of waves approaching shores and bays, the occurrence of diffraction of water waves across. Law of refraction snells law define the refraction index n and write its formula. Light reflection and refraction notes for class 10 download pdf. Reflectionrefraction multiple choice identify the letter of the choice that best completes the statement or answers the question. Understanding waves, reflection and refraction understanding waves, reflection and refraction physics revision in this lesson you will revisit.
Apr 04, 2017 light and sound waves do all kinds of cool stuff, because they can be in the same place at the same time, unlike matter. Reflection of a wave is the process by which the light wave strikes an object and bounces back. Pdf we present a theory of flexural wave propagation on elastic shells having nontrivial geometry and develop an analogy to geometric optics. Reflection and refraction most of what we need to know about geometrical optics can be summarized in two rules, the laws of reflection and refraction. Refraction and reflection of plane waves using huygenss. Gcse science physics 91 triple required practical 9. 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. Physics classroom light refraction answers free pdf file. From te analysis from phase matching from fermats principle of least time total internal reflection and fibers fios. The pdf version of the teacher toolkit on the topic of total internal reflection is displayed below.
Outline te and tm fields refraction and snells law. 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. To get to the essence of this phenomenon from huygenss principle, we dont have a symmetry trick like we did for reflection, so rather than use a point source of the light, we can look at the effect that changing the medium has on a plane wave. Reflection and refraction of plane waves at an interface between micropolar elastic solid and viscoelastic solid. These laws of reflection are applicable to all types of reflecting surfaces. This scattering is caused by the interaction of light with small particles, even atoms or molecules, within the material. 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. Reflection, refraction, diffraction teaching resources. Light reflection and refraction notes for class 10 formulas download pdf. Wavesreflection and refraction wikibooks, open books. Covers refraction of mechanical waves and solves problems involving the law of refraction. 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.
These rules may both be inferred by considering what happens when a plane wave segment impinges on a flat surface. If the light falls on a smooth and clear surface, the light rays reflect back at the same angles. Wavesreflection and refraction wikibooks, open books for. Pdf vector formulations of the laws of reflection and. We demonstrate experimentally that the refraction of chemical waves. Reflection and refraction wave fronts spherical waves are solutions to maxwells equations molecules scatter spherical waves spherical waves can add up to plane waves reflection and refraction from surfaces snells law mirages and prisms.
This means it is always constructively and destructively interfering with itself. Reflection and refraction of waves using huygens principle. Chapter 10 light reflection and refraction notes download in pdf which has explanation of light reflection and refraction, light reflection and refraction class 10, light reflection and refraction class 10 notes, reflection and refraction of light. Worksheet 2 pages and homework 1 page with answers for an introduction to reflection, refraction and diffraction of waves.
To read reflection and refraction of electromagnetic waves by a dielectric slab between dielectric media classic reprint pdf, you should click the web link beneath and download the ebook or get access to other information which are have conjunction with reflection and refraction of electromagnetic waves by a dielectric slab between dielectric. Reflected waves can cause interference with oncoming waves, creating standing waves wave refraction, diffraction, and reflection 24. Remember that the speed of light in air is practically equal to its speed in vacuum. Like any wave, a sound wave doesnt just stop when it reaches the end of the space through which it is traveling or when it encounters an obstacle in its path. Refraction the most common example of refraction is the bending of light on passing from air to a liquid, which causes submerged objects to appear displaced from their actual positions. So if the media or its properties are changed, the speed of the wave is changed. Describe and explain the operation of optical fibres and other examples of total internal reflection. Vector formulations of the laws of reflection and refraction of forward and backward waves article pdf available in russian physics journal 588 december 2015 with 5,495 reads.
Refraction is always accompanied by a wavelength and speed change. Now let us ask what happens when light enters a medium with a different. Reflection of waves off straight barriers follows the law of reflection. But what if the wave is traveling in a twodimensional medium such as a water. Wave refraction the slowing and bending of waves in shallow water wave diffraction propagation of a wave around an obstacle wave reflection occurs when waves bounce back from an obstacle they encounter. Here, the incident and the refracted waves obey snells law of refraction and the incident and the reflected waves obey the laws of reflection.
Most of what we need to know about geometrical optics can be summarized in two rules, the laws of reflection and refraction. Refraction is another term used to describe the the change in direction that light may undergo when travelling. These notes were made as per new guidelines and student can easily download the pdf notes. Many beautiful natural phenomenon such as the rainbows, twinkling stars, northern lights etc. The plane containing both the normal to the surface and the direction of propagation of the incident. Reflection this area of physics is frequently considered to be easy and straightforward, this is because. Light reflection and refraction notes for class 10. Draw a diagram and explain the law of refraction by identifying the incident and refraction rays, incident and refraction angles, the refraction indices, and speeds of light. The points presented below are substantial, so far as the difference between reflection and refraction is concerned. 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. What happens to light striking a surface between air and glass. Reflection of waves definition and examples of reflection. The physics classroom grants teachers and other users the right to print this pdf document and to download this pdf document for private use. Behavior of sound waves reflection, refraction, and diffraction.
Pdf the phenomenon of reflection and refraction is studied at the welded. Destructive interference occurs when two waves are offset by a phase of m. This process occurs for not only light waves but also for sound waves, infrared or radio waves. Reflection and refraction 17 be scattered away from its original direction figure 2. Propagation radio waves flow from the transmitters oscillating antenna to the receivers oscillating antenna but not always directly because radio waves travel in a variety of ways to the receiver, a knowledge of propagation is very important in getting the most enjoyment of amateur radio. Like light waves, radio waves are affected by the phenomena of reflection refraction.
Light and sound waves do all kinds of cool stuff, because they can be in the same place at the same time, unlike matter. Describe examples which illustrate dispersion by refraction. Use the sliders to adjust the index of refraction of each of the two materials, as well as the angle of incidence the angle between the incident ray of. In addition to determining the angle of refraction, n also determines the speed of the light wave in the medium, v cn.
Reflection and refraction when light hits a surface, one or more of three things may happen. Refraction, or bending of the path of the waves, is accompanied by a change in speed and wavelength of the waves. Professionals, teachers, students and kids trivia quizzes to test your knowledge on the. Jan 18, 2018 gcse science physics 9 1 triple reflection of waves. Plane wave entering and emerging from a medium with different index of refraction. When a chemical wave encounters a boundary between two media with different wave speeds, refraction and reflection can occur. Pdf reflection and refraction of plane waves at an. Pdf reflection and refraction of waves at the boundary of a non. On a wave diagram, it is convenient to draw lines, called wave fronts. Refraction is the change in direction of waves that occurs when waves travel from one medium to another.
We find out what each of these properties implies and also understand the difference between reflection, refraction and diffraction. Reflection is described as the reverting back of light or sound waves in the same medium, when it falls on plane. Also when the light bounces off the medium it is called a reflection. Reflection and refraction physics metropolia confluence. Chapter 3 reflection and refraction bgu physics department. This is a plane wave propagating in the direction with wavelength. Scattering is when light bounces off a surface in different directions. This lesson will define reflection in the context of waves, summarize the types of reflection, and provide examples of reflection in action.
The science and study of radio wave reflection, refraction. In this sense, light acts just like any other wave moving from one medium to another. In reflection, the angle of incidence and the angle of reflection are the same, because the medium is the same. The wave generally changes the angle of its general direction. Reflection and refraction are phenomena that occur on waves. 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. Theoretical and computational study of reflection and refraction of electromag netic waves with ppolarized and normal incidence electric wave. Scribd is the worlds largest social reading and publishing site. Refraction is when waves, whether physical or electromagnetic, are deflected when the waves go through a substance. Reflection of waves off parabolic barriers results in the convergence of the waves at a focal point. Vidyakul light reflection and refraction class 10 notes were made by expert teacher to help students in revision for board exam. In this lab, students determine which situation illustrates diffraction, reflection, and refraction.
For sound waves the wavefront would be a surface containing all adjacent points where the wave pressure is in step. The following worksheet is intended to be used as an inquiry worksheet. Refraction and snells law reading shen and kong ch. Refraction of waves involves a change in the direction of waves as they pass from one medium to another. Reflection and refraction of emwaves at portland state university. Difference between reflection, refraction, and diffraction. Reflection and refraction all waves will reflect and refract in the right circumstances. The law of reflection states that the angle of incidence equals the angle of reflection.
Refraction is described by snells law, 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. Questions include the reflection of water waves, refraction of water waves, refraction of water waves across various shapes trapezium base, convex base, concave base, square base, refraction in nature formation of waves approaching shores and bays, the occurrence of diffraction of water waves. Refraction means the shift in direction of the radio waves, when it. In refraction, the angle of incidence and the angle of reflection are different, because the wave changes medium, speed and direction. This process, called refraction, comes about when a wave moves into a new medium. This is a simple simulation showing the reflection and refraction of a ray of light as it attempts to move from one medium to another. Reflection and refraction multiple choice questions and. Pdf reflection and refraction of flexural waves at. 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. Drawingexplanationmultiple choicefill in the blanktruefalsei included a word and pdf version of this worksheet. Physics reflection and refraction of waves youtube. If the object changes direction during this process it is referred to as refraction. The reflection of wave or a pulse can happen from two types of surfaces, it can either be a fixed wall or a ring, as shown in the image below. Difference between reflection and refraction with comparison.
Radio wave propagation radio propagation is the behavior of radio waves when they are transmitted, or propagated from one point on the earth to another, or into various parts of the atmosphere. Waves sound light water see also electromagnetic waves and plate tectonics the best way to remember the information in this chapter is to get a pen and paper and write down your answers. Reflection and refraction of a plane wave at oblique incidence. Reflection of em waves at boun in terms of the in terms of characteristic the index of impedances refraction, assuming. Chapter 10 reflection, refraction, diffraction and. P and swave seismic reflection and refraction measurements at ccoc by robert a. Light waves are refracted when crossing the boundary from one transparent medium into another because the speed of light is different in different media. Absorption is when light energy penetrates an object. Lecture iii3 reflection and refraction of emwaves at a planeinterface between dielectrics.
Light reflection and refraction class 10 notes vidyakul. P and swave seismic reflection and refraction measurements. P and s wave seismic reflection refraction surveys conducted about 200 m southeast of the ccoc drill hole reveal 8 distinct s wave layers, including two velocity inversions hightolow velocity layer boundaries and 4 p wave layers. Reflection of waves reflection, refraction, and sound. The reverting of light or sound waves in the same medium, when it falls on the plane, is called reflection. Illustration of reflection and refraction of a plane wave incident on a square. Ppt reflection, refraction and diffraction powerpoint. Concepts covered include reflection, refraction, and the movement of light. Refraction and reflection of waves using huygens principle as we know that when light falls on an object, it bends and move through the material, this is what refraction is. Refraction is the bending of a wave when it enters a medium where its speed is different, like going from the air gas to a glass of water liquid. Theoretical analysis of reflection and refraction of.
Refraction is also the reason that prisms separate white light into its constituent colors. The reflection and refraction of light explains how people see images, colour and even optical illusions. Refraction is the change in direction of propagation of a wave when the wave passes from one medium into another, and changes its speed. A corresponding presentation is free to use and embedded at physicsuk in section 4 waves includes definitions, wavefront diagrams, explanations for refraction. It differs from reflection in that the light will pass through from one transmission medium to another. Physics worksheet lesson 24 reflection and refraction. Approximately 1 hour of data collection at wonderworks. Describe and explain the formation of mirages and rainbows.
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