Light reflection and refraction 163 the reflecting surface of a spherical mirror is byandlarge spherical. Dec 08, 2019 reflection, refraction and transmission of light, as described in his treatises on the rainbow. If the medium has a smooth surface, then the angle of incidence is equal to the angle of reflection. Module 6 reflection and refraction of light optics and optical instruments 190 z the ray of light parallel to the principal axis, on reflection, passes through the focus. Reflection makes this an excellent desktop wallpaper. Some of it bounces off, some of it goes through, and the rest of it is absorbed. Lenses for imaging are the most common application of refraction, and iwill be discussed in detail in a later section. Cbse class 10 science chapter 10 light reflection and. These notes are prepared by our panel of highly experienced teachers keeping in mind the level of preparation needed by. Edumantra presents class 10th science light reflection and refraction handwritten notes pdf course for students, brought to you by sanjiv sir edumantra, according to the latest syllabus for effective preparation and revision to score high marks in exam. The diameter of the reflecting surface of spherical mirror is called its aperture.
Chapter 10 reflection, refraction, diffraction and. Download a treatise on the reflection and refraction of light. Many phenomena encountered in our daily lives can be simply explained on the basis of refraction and reflection. The angle of refraction is greater when the angle of incidence is greater. Reflection and refraction reading passage worksheets. Refraction and snells law reading shen and kong ch. We also use the definition of the sine as opposite side over hypotenuse to relate the lengths to the angles of. The purpose of this lab was to study some of the basic laws of optics.
If light passes into a medium with a smaller index of refraction, the angle of refraction is larger. This is an important principle in the field of thinfilm optics. A highly polished surface, such as a mirror or other smooth and plane surface, reflects most of the light falling on it. We will explore what rules govern them, their technical names and then apply these rules to study the beautiful world of curved mirrors and lenses. Search for a treatise on the reflection and refraction of light books in the search form now, download or read books for free, just by creating an account to enter our library. A group of rays of light emitted by a source of light is called a beam of light.
The cross section can be visualized by considering just the two rays of light on the edges of the beam. A line drawn in the direction of propagation of light is called a ray of light. Refraction of light multiple choice questions and answers. Science class 10 notes for light reflection and refraction 1. When light passes from a medium into a medium of larger index of refraction, the light slows and bends toward the normal and away the surface. This is the bending of light as it passes from one medium to another.
The travel of light is often represented in geometric optics by a light ray, a line that is drawn to represent the straightline movement of light. List four properties of the image formed by a plane mirror. In the natural world, light can also be transmitted by an object. Notes physics module 6 reflection and refraction of light optics and optical instruments 190 z the ray of light parallel to the principal axis, on reflection, passes through the focus. The result is a generalization of the laws of the reflection and refraction, being possible the control of a refracted wave by modulating the gradient of phase imposed by the resonators 18, 19.
In this lab, we will learn about the reflection and refraction of light, which are two basic laws of optics. Pdf reflection and refraction of light from metasurfaces. Lab preparation when light travelling through air encounters a different material, part of the light energy is reflected back into the air and part of it is transmitted into the glass. Now that you have completed all of the labs dealing with circuits, you will move on to the next area of physics, light and optics. Here we have given ncert class 10 science notes chapter 10 light reflection and refraction. According to the law of refraction, also known as snells law. Y ou ar e already familiar with the laws of r eflection of light. Refraction of light is the change in the direction of light as it passes from one medium to another.
Light reflection and refraction light phenomena id. We shall try to understand in this chapter the r eflection of light by spherical mirrors and refraction of light and their application in real life situations. There is an angle of incidence for which the angle of refraction will be 90. Determining the angle of refraction a light ray strikes an airwater surface at an angle of 46 degrees with respect to the normal. A ray is equivalent to a very narrow beam of light, and it. This text is mainly based on my book sparavigna, 2016 and books and works given in the list of. Reflection of light is when the light bounces off a medium. It includes 10 multiple choice reading comprehension questions and an answer key.
Find the angle of refraction when the direction of the ray is a from air to water and b from water to air. Optics is the study of light, and these two laws form the basis for all devices that collect and. In this lab you will be exploring the first part of optics, the reflection and refraction of light at a plane flat surface and a. Oct 24, 2019 cbse class 10 science notes chapter 10 light reflection and refraction pdf free download is part of class 10 science notes for quick revision. Pdf reflection, refraction and transmission of light in. A light ray travels in a straight line from a source until it encounters some object depending on the nature of the material which comprises the object, the smoothness of the surface, and the angle at which the light ray strikes the surface, the light may suffer reflection, refraction, absorption, scattering, or any combination of these light. Reflection and refraction 82 index of refraction, n speed of light in vacuum, c speed of light in material, v 9. It is only because of the phenomena of reflection and refraction that we are able to view objects. When a light wave strikes an object, it can be absorbed, reflected, or refracted by the object. It is natural to treat the propagation of light in terms of rays. Module 6 reflection and refraction of light optics and optical instruments 190 zthe ray of light parallel to the principal axis, on reflection, passes through the focus. The throwing back by a body or surface of light without absorbing it, is known as reflection of light. Oct 01, 2019 important question for class 10 science light reflection and refraction pdf will help you in scoring more marks this consists of 1 mark questions, 3 mark numericals questions, 5 marks numerical questions and previous year questions from light reflection and refraction chapter.
More than 1 million books in pdf, epub, mobi, tuebl and audiobook formats. Richard fitzpatrick, the university of texas at austin 1. To locate an image, any two of these three rays can be chosen. When light travels from one medium to another like air to glass, or glass to water, it does three things. From te analysis from phase matching from fermats principle of least time total internal reflection and fibers fios.
Refraction is the bending of light when it travels from one medium to a. Download a treatise on the reflection and refraction of. Fermats principle and the laws of reflection and refraction. Derivation of the laws of reflection and refraction. To minimize the time we set the derivative of the time with respect to x equal to zero. Geometrical optics is the study of the behavior of straight line rays at the interference between two. Outline te and tm fields refraction and snells law. The line represents an imaginary thin beam of light that can be used to illustrate the laws of reflection and refraction, the topics of this laboratory investigation. Describe the phenomenon of dispersion and its explanation in terms of refractive index and the wave model of light. Total internal reflection total internal reflection at a glassair interface. Reflection of light is either specular just like mirror or diffuse retaining the energy. The ultimate source of light on the earth is the sun. When light traveling through one material reaches a second material, some of the light will be reflected, and some of the light will enter the second material.
This is called the total internal reflection and was. Total internal reflection if the angle of incidence is larger than this, no transmission occurs. Refraction definition, laws, solved problems, applications. In contrast, a less dense, lower refractive index material will reflect light in phase. Mcq quiz on reflection of light multiple choice questions and answers on reflection of light mcq questions on reflection of light objectives questions with answer test pdf for interview preparations, freshers jobs and competitive exams. The media for and have the indices of refraction, and, respectively. Absorption, reflection, and refraction of light maya lt. Refraction is also the reason that prisms separate white light into its constituent colors. Light reflection and refraction notes for class 10 download pdf. We did this by testing the laws of reflection, refraction snells law, and total internal reflection by conducting four experiments using a focused ray of light, a mirror flat, concave, convex, a protractor, and a refraction tank. Pdf lab 9 reflection, refraction and total internal. This easy to read, one page passage all about light energy is perfect for science.
Class 10th science light reflection and refraction. Reflection refraction worksheet teachers pay teachers. If the beam of light enters a new medium with a higher index of refraction, the rays bend toward the normal, and the cross section of the refracted beam will be larger. Mcq quiz on refraction of light multiple choice questions and answers on refraction of light mcq questions on refraction of light objectives questions with answer test pdf for interview preparations, freshers jobs and competitive exams.
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. The amount that the ray of light will refract is related to the index of refraction of the medium. Professionals, teachers, students and kids trivia quizzes to test your knowledge on the subject. 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. Light reflection and refraction notes for class 10 formulas download pdf. A ray of light traveling through the air n1 is incident on water n1. Some percentage of the light will reflect from the surface of the obstacle and the remaining light will transmit into the material, or refract. Willebrord snellius was credited with formulating this relationship in the seventeenth century 3. 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. Reflection and refraction of light physics courses. Light reflection and refraction class 10 notes vidyakul. Pdf reflection and refraction of light from metasurfaces with. Total internal reflection when light crosses a boundary between media and goes from one index of refraction to a lower index of refraction, the light rays bend away from the normal and toward the surface of the boundary.
Light reflection and refraction class 10 notes are prepared strictly according to the latest ncert syllabus on the guidelines by cbse. Light reflection and refraction class 10 notes science. Refraction occurs when light changes its path as it enters a new medium with a di erent index of refraction 2. Each of these events is governed by a law that can be derived by examining the wave nature of light. Refraction is commonly explained in terms of light s wave theory, and is based on the fact that light travels at higher speeds in some media than in others, this is not due to absorption or. Refraction is used to guide light in optical instruments. All objects have a degree of reflection and absorption. Figure 2, then 2 is defined as the angle of refraction. Drawingexplanationmultiple choicefill in the blanktruefalsei included a word and pdf version of this worksheet. Pdf a threedimensional extension of the recently demonstrated generalization of the laws of refraction and reflection was investigated for. Without light, we will not be able to see anything. Science class 10 notes for light reflection and refraction. According to new cbse exam pattern, mcq questions for class 10 science pdf carries 20 marks.
To study the reflection of light by a flat surface and to study the refraction of light through straight and curved surfaces. These notes are prepared by our panel of highly experienced teachers keeping in mind the level of preparation needed by the students to prepare for class 10 board exams. 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. As for reflection, a simple law characterizes the behavior of a refracted ray of light. Reflection of light multiple choice questions and answers. That is, light can pass through an object with no effect an xray. The behavior of light as it refracts at the boundary can be described by snell s law, equation 2. A line drawn in the direction of propagation of light is called a. The larger the index of refraction n is, the slower light is in the medium vcn. This is a tier i instructional resource to provide a scaffolded learning experience for teks 56c. The color of the objects we see in the natural world is a result of the way objects interact with light. 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. Notes physics module 6 reflection and refraction of light optics and optical instruments 190 zthe ray of light parallel to the principal axis, on reflection, passes through the focus.
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