Numericals on light class 10 science physicscatalyst. Reflectionrefraction multiple choice identify the letter of the choice that best completes the statement or answers the question. Jun 03, 2018 light reflection and refraction class 10 science physics cbse ncert kvs part 1. Reflection, is when the light goes back to the previous medium, but changes direction. Light reflection and refraction notes for class 10 formulas download pdf. 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. A group of rays of light emitted by a source of light is called a beam of light. A line drawn in the direction of propagation of light is called a. Describe the phenomenon of dispersion and its explanation in terms of refractive index and the wave model of light. Bending light snells law refraction reflection phet.
Light reflection and refraction notes for class 10 download pdf. Reflection and refraction lab mbusd internet usage. Refraction can be used to show the true make up of white light. Light reflection and refraction jsunil tutorial cbse. A line drawn in the direction of propagation of light is called a ray of 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. Laws of refraction i the incident ray, the refracted ray and the normal to the interface of two transparent media at the point of incidence, all lie in the same plane. Light is a form of energy that enables us to see things. Class 10 science chapter 10 light reflection and refraction.
When shone, as a beam through a prism, white light gets refracted and exits in the form of a spectrum of colours. Further, you also have to know that a particular law primarily governs reflection and every reflection follows the same rule. Second, light always travels through the shortest path possible. The angle of refraction at this surface is then 11glass glass 3. Light, reflection, and color characteristics of light light is an electromagnetic wave. Knowing the difference between reflection and refraction will help you understand basic phenomenon of science. The best app for cbse students now provides light reflection and refraction class 10 notes latest chapter wise notes for quick preparation of cbse board exams and school based annual examinations. When light falls on a highly polished surface like a mirror most of the light is sent back into the same medium. Reflection and refraction when light hits a surface, one or more of three things may happen. An image is formed when the light rays coming from an object meet at a point after reflection from a mirror or refraction from lens.
Rays of light parallel to the principal axis after reflection from a convex mirror get diverged and appear to come from a point behind the mirror. See how changing from air to water to glass changes the bending angle. 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. Cbse class 10 science chapter 10 light reflection and. Reflection and refraction all waves will reflect and refract in the right circumstances. It is formed at the same distance behind the mirror as the object is in front of the mirror. This scattering is caused by the interaction of light with small particles, even atoms or molecules, within the material. An object at a distance of 30 cm from a concave mirror gets its image at the same point. Light reflection and refraction class 10 science physics.
Play with prisms of different shapes and make rainbows. The white light enters, gets refracted and then when exiting the prism gets refracted again. Mcq questions for class 10 science light reflection and. The amount of light reflected or refracted depends on the angle at which you are looking relative to the surface. Prepared by teachers of the best cbse schools in india.
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. Chapter 10 light reflection and refraction is one of the important chapters in class 10 science and the expected marks weightage of the chapter according to the latest marking scheme is 7 marks. Outline te and tm fields refraction and snells law. Refraction is caused by the change in speed of light.
Difference between reflection and refraction with comparison. Cbse 10, physics, cbse light reflection and refraction, test. Ncert solutions for class 10 science chapter 10 in pdf for. Refraction and snells law reading shen and kong ch. This theory treats light as a particle called corpuscle. Light reflection and refraction important questions and answers. Free pdf download of ncert solutions for class 10 science physics chapter 10 light reflection and refraction solved by expert teachers as per ncert cbse book guidelines.
Electromagnetic waves are ultimately produced by an accelerating charge. The reflection and refraction of light explains how people see images, colour and even optical illusions. The radius of curvature of a spherical mirror is 20 cm. The scattered light goes off in many different directions, and may be scattered again and again before it is finally absorbed. Light reflection and refraction class 10 science physics cbse ncert kvs part 1. Ncert solutions class 10 science chapter 10 light reflection. If light passes into a medium with a smaller index of refraction, the angle of refraction is larger. Refractive index of the medium b relative to medium a is a 3 2 b 2 3 c 1 2 d 2 light reflection and refraction chapter10 fig. Ncert solutions for class 10 science chapter 10 light reflection and refraction. Reflection and refraction 17 be scattered away from its original direction figure 2.
The refractive index of medium b relative to a will be a greater than unity b less than unity c equal to unity d zero 6. Dec 18, 2018 refraction is the bending of light when it travels from one medium to another medium. Light reflection and refraction class 10 science physics cbse. Apply snells law to a laser beam incident on the interface between media. Mcq on reflection and refraction of light with answers pdf question 5. Cbse class 10 science mcqs on chapter 10 light reflection. 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. In this chapter we will study the phenomena of reflection and refraction using the property of light i. Notes of ch 10 light refraction class 10th science. Critical angle is considered when a ray of light travels from denser medium to refractive medium. For other questions, please visit to 185 or 188 or 194 or or go for english medium solutions. Ncert solutions for class 10 light reflection and refraction intext questions on page 203 are given below. Light reflection and refraction class 10 ncert solutions.
From te analysis from phase matching from fermats principle of least time total internal reflection and fibers fios. Describe how the speed and wavelength of light changes in different media. 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. Reflection and refraction lab page 3 seeing reflection and refraction at the same time both refraction and reflection often occur when light hits a boundary between materials such as the boundary between glass and air. These laws of reflection are applicable to all types of reflecting surfaces. The ratio of sine of angle of incidence to the sine of angle of refraction is a constant, for a light of given colour and for a given pair of media. Geometrical optics is the study of the behavior of straight line rays at the interference between two. Hence, the angle of incidence at the lower surface will be 2 19. List four properties of the image formed by a plane mirror. A light ray enters from medium a to medium b as shown in figure 10. The first theory of light was put forward by newton. Download free printable worksheets physics pdf of cbse and kendriya vidyalaya schools as per latest syllabus in pdf, cbse class 10 physics worksheet lightreflection and refraction practice worksheets for cbse students.
The principal focus of a concave mirror is a point f on its principal axis to which all the light rays which are parallel and close to the. Cbse class 10 physics light reflection and refraction. Cbse notes for class 10 science chapter 10 light reflection and refraction. Science class 12 physics india ray optics and optical instruments refraction at. Describe the effect of changing wavelength on the angle of refraction. There is an angle of incidence for which the angle of refraction will be 90. Start your online class now, use code care20 to get extra 20% off on all courses. Refraction of light simone zuccher february 4, 20 contents 1 the physical phenomenon 1 2 laws of refraction 2 3 visible light wavelength dispersion 3 4 critical angle and total internal re. Refraction is used to guide light in optical instruments. Light starts from a source and bounces off objects which are perceived by our eyes and our brain processes this signal, which. The colours of the rainbow are seen to exit instead of the white beam. Light reflection and refraction class 10 notes science.
All chapter 10 light reflection and refraction exercise questions with solutions to help you to revise complete syllabus and score more marks. Explore bending of light between two media with different indices of refraction. Light reflection and refraction chapter wise important. Ncert cbse solutions for class 10 science chapter 10. Jan 07, 2020 mcq on reflection and refraction of light with answers pdf question 5. Real images are formed when rays of light that comes from an object or source meets at a point after reflection from a mirror or refraction from a lens. Explain how light bends at the interface between two. Cbse class 10 science chapter 10 light reflection and refraction. Total internal reflection if the angle of incidence is larger than this, no transmission occurs. Reflection and refraction of light 361 b since the upper and lower surfaces are parallel, the normal lines where the ray strikes these surfaces are parallel.
By the way, related with light reflection and refraction worksheet. Reflection and refraction university of calgary in alberta. On the flip side, refraction is when light is absorbed by the medium but the direction and speed is affected. Lenses for imaging are the most common application of refraction, and iwill be discussed in detail in a later section.
Redraw the given diagram and show the path of the refracted ray. Ncert solutions for class 10 science chapter 10 light. Light reflection and refraction notes for class 10. We can say that light propagates as a wave and is emitted and absorbed as a particle. 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. As shown below, an electromagnetic wave is a transverse wave consisting of mutually perpendicular oscillating electric and magnetic fields.
Cbse class 10 science chapter 10 light reflection and refraction notes in pdf are available for free download in mycbseguide mobile app. 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. In the beginning of the video, we show a magic trick. Visit class 10 science main page or top of the page. Cbse class 10 science chapter 10 light reflection and refraction notes. To register science tuitions on to clear your doubts. Chapter 10 light reflection and refraction link of pdf file is given below at the end of the questions list in this pdf file you can see answers of following questions ncert solutions intext questions page no. Refraction is the bending of light when it travels from one medium to another medium. In our light reflection and refraction class 10 notes pdf, we have drawn a comparison between reflection and refraction in a step by step manner so that you can quickly grasp the concept and remember it for longer. Snells law also predicts the phenomenon of total internal reflection.