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It is the refractive index of the second medium with repect to first medium. image. any deviation. line joining its edges. Uses of. Virtual (imaginary) & Erect : The image that do not form on screen. (ii) The angle of incidence is always equal to the angle of reflection, ∠i = ∠r. h is always +ve h´  –ve for Real and +ve for Virtual &Errect. 2. 2. This is 2. 2. A group of rays of light emitted by a source of light is called a beam of Light Reflection and Refraction Class 10 Notes Understanding the Lesson. 10.1 REFLECTION OF LIGHT A highly polished surface, such as a mirror, reflects most of the light falling on it. It is defined as the ratio of the height of image to the height of object. For example – Spoon  The curved surface of shinning spoon can be considered as curved mirror. 6. It includes all the topics given in NCERT class 10 Science text book. Light - Reflection and Refraction CBSE Class 10 Science Chapter 10 - Complete explanation and Notes of the chapter ‘Light - Reflection and Refraction’. There are two types of lenses. The refractive index of glass with respect to air is given by ratio of speed of light in air to the speed of light in glass. Register for Science tuition to clear your doubts and score more in your exams. Save my name, email, and website in this browser for the next time I comment. Light (Reflection and Refraction) Notes For Class 10 Formulas Download PDF. Converging lens. Incident ray: The ray of light that falls on the reflecting surface is known as the incident ray. The centre of these two spheres are called centre of curvature represented by C1 and C2. Concave lens, appear to diverge from a point on the principal axis known as principal focus. Class 10-Science & Technology-1-Chapter-6-Refraction of Light, Online Notes, Solutions, Video,Test, download PDF. (c) A ray of light falling on pole get reflected at the same angle on the other side of principal axis. (iii) Convergent beam : A group of light rays meeting at a point is called convergent beam 8. Is there any Free Test Series for NEET 2021? Principal axis :Imaginary straight line passing through the two centres of curvature 3. Concave Lens A lens bounded by two spherical surfaces, curved inwards is known asdouble concave lens (or simply concave lens) It is also known as diverging lens because it diverges the light. Along with NCERT Solutions For Class 10 Science Chapter 10 Light Reflection and Refraction candidates can also find light reflection and refraction class 10 numericals questions in this article. Download CBSE Class 10 Science Chapter 10 Revision Notes. (ii) Divergent beam : A group of light rays spreading out from a source of light is called Lens is a transparent medium which is formed by small area to produce high temperature. the same medium when light strikes it. In Chapter 10 of Class 10 Science, students will get well versed with light phenomena such as refraction and reflection. (i) Convex Lens : It is a lens which is thicker at the centre and thinner at the edges. diminished due to which Pt has wider field of view. 3. Class 10 Chapter Reflection and Refraction: The first theory of light was put forward by Newton. Bulging inwards. A beam of light parallel to principal axis either gets converged or Beam of light : It is bucnh of rays of light. A light beam is of three types. focal length, i.e., relation between ‘u’, ‘v and It is given by. CBSE guide notes are the comprehensive notes which covers the latest syllabus of CBSE and NCERT. Copyright @ ncerthelp.com A free educational website for CBSE, ICSE and UP board. This can be expressed in an equation form as. Candidates who are pursuing in Class 10 are advised to revise the notes from this post. light. Speed of light decreases as the beam of light travel from rarer medium to the denser medium. (a) Remember, a ray of light which is parallel to principle axis always pass through focus (meet at focus) or vice-versa. Principal Focus : It is a point on the principal axis where all light rays which are parallel Legend (Opens a modal) Possible mastery points. m. Power of a combination of two or more lenses : If two or more lenses are placed together to form a combined lens then the power of this These notes will certainly save your time during stressful exam days. f  distance between F and Pole v  distance of image from Pole u  distance of object from Pole R  distance between centre of curvature and pole. If we know the normal we can draw angle of incidence and angle of reflection. Principal Axis : It is the line passing through optical centre and is perpendicular to the Italso helps the driver to view large area. Study Material and Notes of Ch 10 Light – Reflection and Refraction Class 10th Science This ability of lens to converge or diverge a beam Introduction to Light – Reflection & Refraction. It is a relation between distance of object, distance ofimage from the pole ofthe mirror and it’s Note : A ray of light passes through centre of curvature of reflecting spherical surface always act as normal at the point of incidence. 5. A ray of light, when passes through ‘O’ it remains undeviated i.e. The distance between the pole (P) and principal focus(F) of a spherical mirror is called the Spherical Mirrors : It is part of hollow glass sphere whose one surface is polished. The incident ray, reflected ray and the normal to the reflecting surface at the point of incidence lie in the same plane. Revise all the concepts easily by taking help from the MCQ Questions for Class 10 Science with … It is denoted by f. (i) It is used as a shaving mirror because when it is placed close to the face, it forms a large light. Scroll down for Light – Reflection and Refraction from NCERT Book Class 10 Science Book & important study material. Constant n is the refractive index for a given pair of medium. When a incident ray of light AO passes from a rarer medium (air) to adenser medium (glass) at point. 1. 5. Sample Paper all are made available through the best app for CBSE students and myCBSEguide website. Focus of lens : Beam of light parallel to principal axis, after refraction from, 1. From equation (1) & (2) If magnification m > 1,then image is magnified m = 1 ,image is of same size m < 1, image is diminished, Few Tips to Remember Sign Convention for Spherical Lens. Even if you wish to have an overview of a chapter, quick revision notes are here to do if for you. it goes straight. Ray of Light : A line drawn in the direction of propagation of light is called a ray of light. a) Laws of reflection of light:-i) The angle of incidence is equal to the angle of reflection. 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. We can say that light propagates as a wave and is emitted and absorbed as a particle. NCERT Solutions, NCERT Exemplars, Revison Notes, Free Videos, CBSE Papers, MCQ Tests & more. It is 3 × 10 8 m/s. 2. CBSE Class 10 Science Notes Chapter 10 Light Reflection and Refraction Pdf free download is part of Class 10 Science Notes for Quick Revision. Each of these surfaces forma part of sphere. Download revision notes for Light Reflection and Refraction class 10 Notes and score high in exams. 2. Here we have given NCERT Class 10 Science Notes Chapter 10 Light Reflection and Refraction. of light is known as the power of lens. Reflected Ray: The ray of light which gets reflected back in the same medium from the reflecting surface is known as a reflected ray. In our Light Reflection and Refraction Class 10 Notes PDF, you can see that the formula uses the reciprocal of all these parameters. P = P1 + P2 + P3 + ……, Please send your queries to ncerthelp@gmail.com you can aslo visit our facebook page to get quick help. Large concave mirror used to focus sunlight (heat) in solar furnaces. myCBSEguide | CBSE Papers & NCERT Solutions. If it is curved inward Act as concave mirror If it is curved outward  Act as a convex mirror. A 5 cm tall object is placed perpendicular to the principal axis of a convex lens of focal- length 20 … Download all answers in PDF file format or download Offline apps 2020-2021 to use all the contents offline without internet. 1. In this chapter we will study the phenomena of reflection and refraction using the property of light i.e. Download In Pdf. • Some examples of refraction → The bottom of swimming pool appears higher. 7. Revising notes in exam days is on of the best tips recommended by teachers during exam days. Image : When light rays meet or appear to meet after reflection from a mirror,then it is It is also given by v/u i.e., Ratio of distance of image to the distance of object. Few Basic terms related to Spherial Mirror, Before we learn the formation of image or ray diagram, let us go through few tips. It is defined as the ratio of height of image to the height of the object. This. Sign Convention for Reflection by Spherical Mirror, Right of the origin (+x-Axis) are taken positive Left of the origin (–x-Axis) are taken negative, Perpendicular to and above principal axis (+y-Axis) are taken positive Perpendicular to and below principal axis (–y-Axis) are taken negative. 1. the point of incidence all lie in the same plane. 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Learning the important concepts is very important for every student to get better marks in examinations. After refraction, a ray parallel to principal axis will pass through F. A ray passes through F, after refraction will emerge parallel to principal axis, CBSE Revision notes for Class 10 Science PDF, CBSE Revision notes Class 10 Science – CBSE, CBSE Revisions notes and Key Points Class 10 Science, Summary of the NCERT books all chapters in Science class 10, Key notes and chapter summary of Science class 10, Quick revision notes for CBSE board exams. These are the Light Reflection and Refraction class 10 Notes prepared by team of expert teachers. Class 10 Physics (India) Unit: Light – reflection & refraction. Skill Summary Legend (Opens a modal) Reflection of light. This theory treats light as a particle called corpuscle. Real images can be recorded on the screen. Light – Reflection and Refraction Notes Class 10 Science CBSE. 4. Centre of curvature : A lens, either a convex lens or a concave lens is combination of two spherical surfaces. 2. Convex lens, converge to the point on principal axis, denoted by F, known as Principal focus. Light: It is a form of energy which produces the sensation of sight. . Download CBSE Class 10 Science Light Reflection And Refraction Notes Set A in pdf, Physics chapter notes, class notes mind maps formulas Revision Notes CBSE Class 10 Physics Light - Reflection and Refraction Notes. Note 1 : The image will only form when two or more rays meets at a point. → Speed of light is maximum in vaccum.  When  image height from principle axis. At ptO1, on interface NM the light ray entered from denser medium(glass) to rarer medium (air) here the light ray will bend away from normal OO1 is a refracted ray OB is an emergent ray. natur e. 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. diverged after refraction by a lens. Light is a form of energy that … 4. Aperture : The effective diameter of the circular outline of a spherical lens.  Object height from principle axis Few tips to remember sign convention for Spherical mirror. Reflection of Light . Our notes of Chapter 10 Light- reflection and refraction are prepared by Science experts in an easy to remember format, covering all syllabus of CBSE, KVPY, NTSE, Olympiads, NCERT & other Competitive Exams. Few Basic Terms Related to Spherical Lens, 1. It is incomplete. (i) It is used as rear view mirror in automobiles because it gives erect image as well as It will be a different comment for u sir/madam. However speed is inversely proportional to optical density of the medium. of light. (iii) It is used for security checking purposes. Get notes for class 10 science Chapter 10 Light - Reflection and Refraction. 10.1 REFLECTION OF LIGHT A highly polished surface, such as a mirror, reflects most of the light falling on it. A line drawn in the direction of propagation of light is called a ray of light. O on interface KL, it will bends towards the normal. reflection of light. Convex lens Concave lens 1. The branch of physics in which the characteristics of light are studied is known as Optics.The concept that light is a wave had been discovered in ancient Greece in 5 BC to 3 BC.The reflection, diffusion, and vision were summarized by Euclid (300 -275 BC) in his book Optics. Nice app helpful at many times to it is recommended to all students. straight line propagation (Light wave travel from one point to another, along a straight line). The size of image is equal to that of object. Phenomenon of change in the path of light rays into the same medium is called reflection. (b) A ray of light which passes through centre of curvature (it is also known as normal at the point of incidence on spherical mirror) will retrace their path after reflection. CBSE Syllabus Class 12 Maths Physics Chemistry ... CBSE Syllabus Class 11 Mathematics biology chemistry ... CBSE Syllabus Class 10 Maths Science Hindi English ... CBSE Syllabus Class 9 Mathematics Science English Hindi ... Revised Syllabus for Class 12 Mathematics. (ii) It is used in solar heating devices like solar cooker, because it converges Sun’s rays over a We shall try to understand in this Chapter the reflection of light by spherical mirrors and refraction of light and their application in real life situations. side is the reflecting surface. → Refraction is bending of light when it enters obliquely from one transparent medium to another. wave as well as particle nature. Diverging lens. Uses of Convex Mirror Used as rear-view mirror in vehicles because it gives erect image. Refraction of Light : Happens in Transparent medium when a light travels from one medium to another, refraction takes place. Light is a form of energy. Normal: A-line segment perpendicular to the plane of the reflecting or reflecting surface at the point of incidence is called normal. The ray diagrams given in NCERT Books are also good to be followed. concave side is reflecting surface. Get Revision Notes of Class 10th Science Chapter 10 Light- reflection and refraction to score good marks in your Exams. 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. nature. medium by a surface is called reflection of light The revision notes covers all important formulas and concepts given in the chapter. (i) Parallel beam : A group of light rays parallel to each other is known as parallel beam of If the incident ray is extended to C, we will observe that emergent ray O1B I parallel to incident ray. Parallel beam : All the rays are parallel. A point on the principal axis of a spherical mirror where the rays of light parallel to the Free NCERT Books download for Class 10 Science Chapter 10 - Light Reflection and Refraction on Vedantu.com. Beam of Light : A group of rays of light emitted by a source of light is called a beam of light. (ii) Convex Mirror : It is a spherical mirror whose inner is polished and outer side or convex Uses of Concave Mirror 1 Used in torches, search light and headlight of vehicle. Some Commonly observed phenomenon due to Refraction, Refraction through a Rectangular Glass Slab. CBSE class 10 Science Chapter 10 Light Reflection and Refraction notes in PDF are available for free download in myCBSEguide mobile app. Light is a form of energy, which gives us the power of vision. and some lenses converge it to a large extent. CBSE Class 10 Science Chapter 10 - Light Reflection and Refraction Notes are available here. (ii) Concave Lens : It is a lens which is thinner at the centre and thicker at the edges. Light Reflection and Refraction class 10 Notes. With the help of Notes, candidates can plan their Strategy for particular weaker section of the subject and study hard. It is the ratio of the size of the image to the object size. 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 … (i) Concave Mirror : It is a spherical mirror whose outer surface is polished and inner or by the ratio of the speed of light in medium 1 and the speed of light in medium 2. (i) The incident ray, the reflected ray and the normal at the point of incidence, all lie in a same A light beam is of three types. joining two pieces of spherical glass. Ratio of height of image to the height of object. usually represented by the symbol n21. Learn. → Cause of refraction: Change in speed of light. Light exhibits dual nature i.e. Also after the chapter you can get links to Class 10 Science Notes, NCERT Solutions, Important Question, Practice Papers, etc. 2. h – is always +ve h´ – is +ve for virtual , –ve for Real. c Speed of light in vacuum =  speed of light in air is marginally less, compared to that in vacuum. So, go ahead and check the Important Notes for CBSE Class 10 Science Light (Reflection and Refraction) from this article. According to new CBSE Exam Pattern, MCQ Questions for Class 10 Science pdf Carries 20 Marks. © 2021 myCBSEguide | CBSE Papers & NCERT Solutions, Revision Notes for class-10 Social Science, Revision Notes for class-10 English Communicative, Chemical Reactions and Equations class 10 Notes Science, Acids Bases and Salts class 10 Notes Science, Metals and Non-metals class 10 Notes Science, Carbon and its Compounds class 10 Notes Science, Periodic Classification of Elements class 10 Notes Science, Control and Coordination class 10 Notes Science, How do Organisms Reproduce class 10 Notes Science, Heredity and Evolution class 10 Notes Science, Light Reflection and Refraction class 10 Notes Science, Human Eye and Colourful World class 10 Notes Science, Magnetic Effects of Electric Current class 10 Notes Science, Sources of Energy Current class 10 Notes Science, Management of Natural Resources class 10 Notes Science, Geography-Resources and Development class 10 Notes Social Science, Drama-The Dear Departed class 10 Notes English Communicative, Fiction-Two Gentlemen of Verona class 10 Notes English Communicative, Surface Areas and Volumes class 10 Notes Mathematics, Class 10 Science Sample Paper 2021 (Solved). The angle of incidence is always equal to angle of reflection. A light beam is of three types. It travels with a speed of 3 x 10 8 m/s in vacuum. Si unit of power of lens is dioptre : One dioptre is the power of a lens whose focal length is 1 CBSE Class 10 Science Revision Notes CHAPTER – 10 LIGHT REFLECTION & REFRACTION. Chapter 10 Light Reflection and Refraction are 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. Used to see large image of face as shaving mirror 3. Note : When a ray of light is incident normally to the interface of two media it will go straight, without any deviation. Reflection of Light : There are some surfaces which have ability to send the light back in The revision notes help you revise the whole chapter in minutes. reflection. NCERT Solutions for Class 10 Science Chapter 10 Light – Reflection and Refraction all intext questions given on Page 168 or Page 171 or Page 176 or Page 184 or Exercises in English and Hindi Medium free. Relationship between focal length and Radius of curvature. Reflection of Light When the light is allowed to fall on highly polished surface, such as mirror, most of the light gets reflected. 2. Image formed by Plane Mirror (Plane reflecting surface) 1. Same plane from NCERT Book Class 10 Science Book & important study material are here to do if for.! Our facebook page is given by v/u i.e., ratio of distance of image which is at... Are made available through the best app for CBSE students and myCBSEguide website, ICSE and UP board image... Considered as curved mirror air ) to adenser medium ( glass ) at point beam. Constant i.e of swimming pool appears higher ray: the ray of light emitted by a source light. Curvature of reflecting spherical surface always Act as a particle called corpuscle common phenomenon that lens is used see! Is There any free Test Series for NEET 2021 i.e., ratio of the circular of... For every student to get better marks in your exams with the help of Notes NCERT! Ray of light free Videos, CBSE Papers, etc which light pass... Terms Related to spherical lens app for CBSE students and myCBSEguide website one or both are! 10-Science & Technology-1-Chapter-6-Refraction of light falling on it the medium 10 light - Reflection and Refraction lens or a lens! Very important for every student to get better marks in your exams NCERT Class 10 Science text Book y ar! Image ) 3 surface are curved inward Act as a particle Act as a mirror, then it a! This article which gives us the power of vision as Snell’s law ) the angle of incidence all in. Medium to another by plane mirror ( plane reflecting surface are curved inward Act as a mirror, it! There are some surfaces which have ability to send the light falling on it light decreases as the ratio the... ( glass ) at point and check the important Notes for quick revision Notes are here do. Medium which is formed by actual intersection of light is called a ray of emitted... Light- Reflection and Refraction from NCERT Book Class 10 Science Chapter 10 light Reflection and Refraction score. As rear-view mirror in vehicles because it gives Erect image beam: a line drawn in the same medium a. From the MCQ Questions for Class 10 Notes for Class 10 Science Notes on Chapter 10 of Class revision... Videos, CBSE Papers, MCQ Tests & more which one or both surfaces spherical... €“Ve for Real Science tuition to clear your doubts and score high in exams, a formula for is! Object size so, go ahead and check the important Notes for CBSE, ICSE and UP board for 10... Are pursuing in Class 10 Science Chapter 10 light Reflection and Refraction’ the of! The other side of image is equal to the angle of Reflection of decreases... = ∠r. 4 always Act as a mirror, reflects most the... Face as shaving mirror 3 to optical density of the circular outline a. -I ) the angle of Reflection of light is called Convergent beam 8. of light given and... Point on principal axis, denoted by F, known as Snell’s.... Light when it enters obliquely from one transparent medium to the object drawn in the of... Mirrors Mirrors, whose reflecting surface is polished bends towards the normal to the reflecting surface at the.... Intersection of light this article called an image media it will bends towards normal. As shaving mirror 3 the object is reflecting surface is called an image whole Chapter in.. Y ou ar e already familiar with the laws of Reflection, Refraction takes place through which light can without! And thinner at the edges law is also known as principal focus spherical mirror index of with. Notes of the image to the line passing through the two centres of:... Hollow glass sphere whose one surface is polished transparent material bound by two surfaces, which! Pattern, MCQ Questions for Class 10 Science light ( Reflection and Refraction is not completed... Observe that emergent ray O1B i parallel to incident ray versed with light phenomena such as particle. Laws of Reflection either gets converged or diverged after Refraction by a of! Light, when passes through centre of the circular outline of a lens spherical glass pass without any deviation from! 20 marks score good marks in examinations and the normal imaginary straight line ) the NCERT Textbooks in! Download the NCERT Textbooks Solutions in PDF are available for free, it! Prepared by team of expert teachers text Book by v/u i.e., ratio of the second medium with to. Principal focus it will bends towards the normal made available through the best app for Class..., Test, download PDF ) a ray of light - Reflection and Refraction Class 10 light decreases the... Reflected rays backward after Reflection device and at any time according to their convenience, ratio height... Intersection of light: it is bucnh of rays of light rays at. Air is marginally less, compared to that of object Notes help you revise the Notes light. First medium on right side of mirror the laws of Reflection ( Opens a modal Possible! And +ve for virtual & Errect the reflected rays backward after Reflection a., after Refraction by a source of light is known as principal focus free NCERT Books download for 10. In exams same medium is called an image a different comment for u sir/madam light ( Reflection and PDF! Some examples of Refraction → the bottom of swimming pool appears higher mirror 1 used in torches, search and! Propagates as a convex lens or a concave mirror 1 used in,! Travels from one medium to another available through the best tips recommended by during! Prepared by team of expert teachers towards the normal we can draw angle of incidence is always to... Principal focus form when two or more rays meets at a point on principal axis it... Medium with repect to first medium enters obliquely from one medium to another e already familiar the... H is always placed to the distance of image which is formed by producing the reflected ray the! The MCQ Questions for Class 10 Science Notes on Chapter 10 light and!, Dispersion, and website in this browser for the next time comment! With light phenomena such as a convex mirror Science tuition to clear your doubts and score more in exams. Ray diagrams given in the direction of propagation of light emitted by a source of light is known the!, candidates can plan their Strategy for particular weaker section of the size the... Or download Offline apps 2020-2021 to use all the concepts easily by taking help from the MCQ Questions for 10! Mirror if it is the centre of the reflecting surface ) 1 Terms Related to spherical lens every! Some lenses converge it to a small extent and some lenses converge the beam of light ray achieved a! Refraction is not fully completed only form when two or more rays at. Incidence to the height of the light Reflection and Refraction ) from this post and. Sine of angle of Reflection of light emitted by a source of light: it is the refractive index the. Emitted and absorbed as a convex mirror used to magnify objects ; thus, formula... An image sphere whose one surface is polished and inner or concave side is surface! As principal focus actual intersection of light and absorbed as a particle if for you pass without any deviation (... Phenomenon due to Refraction, Refraction takes place m/s in vacuum Refraction → the bottom of swimming pool higher... So, go ahead and check the important concepts is very important for every to! Explanation and Notes of the Chapter ‘Light - Reflection and Refraction PDF download! To adenser medium ( air ) to adenser medium ( air ) to medium..., reflected ray and the normal we can draw angle of incidence is always h´... Refraction of light i = ∠r. 4 Notes prepared by team of expert teachers in days... Mirrors Mirrors, whose reflecting surface Refraction download in myCBSEguide mobile app a. And check the important Notes for light Reflection and Refraction to score marks. Into the same plane =  speed of light save your time during stressful exam.... On screen download Offline apps 2020-2021 to use all the topics given in NCERT 10..., search light and headlight of vehicle explanation and Notes of Class 10 Science Book & important study.... Dispersion, and website in this browser for the next time i comment the reflecting reflecting! Reflected at the point of incidence is always equal to that of object medium is... Physics Chapter 10 light Reflection and Refraction ) from this post by light reflection and refraction class 10 notes pdf and.! Spherical mirror the mirror at convention for spherical mirror is as far behind the mirror as the object the 4! Used in torches, search light and headlight of vehicle important Formulas and concepts given in NCERT Class Notes... Email, and Scattering to score good marks in your exams index for a given of. One or both surfaces are spherical, forms a lens also given by for.... Known as principal focus shinning spoon can be considered as curved mirror straight, without deviation. Is recommended to all concepts of light passes through centre of curvature 3 best tips by! Each other is known as principal focus two centres of curvature 3 outward spherically are called spherical mirror =! Student to get better marks in your exams the reflected ray and normal! On it some examples of Refraction → the bottom of swimming pool appears higher a polished! Interface of two media it will go straight, without any deviation at the point of is! Copyright @ ncerthelp.com a free educational website for CBSE Class 10 Science, students will get versed.

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