Light waves — that is, electromagnetic waves — behave like other waves: They can reflect, refract (bend), and interfere with each other. /Filter /FlateDecode endstream 36 0 obj 8 0 obj <> /Subtype /Form Polarization as Huygens assumed light waves to be mechanical disturbances which are longitudinal in nature. /Filter /FlateDecode Exam 2 next Monday: same procedures as last time •! Thus, the section of optics that deals with the behavior of light and its wave characteristics is said to be wave optics. Transparent medium: - It is a medium through which light can be propagated easily. Waves Optics Equations and Formulas for students. A wavefront is represented by the plane y=8−3xy=8-\sqrt{3}xy=8−3​x. But failed to explain: According to Maxwell, light is not a mechanical wave. >> Mirror Formula 3. endobj 5 0 obj This medium is called ether. stream endobj endobj endobj endobj Mirror Formula 3. endstream >> Amplitude of light waves, A∝1rA\propto \frac{1}{r}A∝r1​, and, Intensity of light waves, I∝1r2I\propto \frac{1}{{{r}^{2}}}I∝r21​. >> 35 0 obj Important notes of Physics for NEET, JEE for Ray Optics and Optical Instruments are useful for all aspirants preparing for entrance exams including JEE, NEET. We will learn about the concept of wave optics for IIT JEE in detail here. It covers all the aspects of Mechanics , Thermal Physics, Electrostatics and current electricity , magnetism ,Ray Optics, Wave optics … Using this theory Newton was able to explain reflection and refraction but failed to explain the cause of interference, diffraction and polarization. 3 0 obj Free PDF download of Physics Class 12 Chapter 10 - Wave Optics Formulas Prepared by Expert Teachers at Vedantu.com. stream In this case, Amplitude of light waves, A∝1rA\propto \frac{1}{\sqrt{r}}A∝r​1​, Intensity of light waves I∝1rI\propto \frac{1}{r}I∝r1​. <> endobj endobj The R.K. Malik's Newton Classes offers classroom contact programmes & comprehensive JEE correspondence course which is the closest one can get to classroom programme for JEE Main / Advanced / NEET / ISI preparation.The course also wraps in itself our experience in successfully training thousands of students in classrooms over a decade . endobj <> /BBox [0 0 50.4920 34.5470] But is students understand the concepts behind the formulas properly they can enjoy learning the subject. /Matrix [0.7257 0 0 2.1389 0 0] >> >> The wave optics class notes pdf is the compilation of detailed theory part, solved examples, HC Verma questions and Previous year Questions. Chapter: Ray Optics & Optical instruments & Wave Optics XII Physics All distances are measured in meter (m) Snell’s law states n = sin i/ sin r n is refractive index i is the angle of incidence r is the angle of refraction Sign convention distances measured in the same direction as incident light is positive /Filter /FlateDecode endobj A perpendicular drawn to the surface of a wavefront at any point, in the direction of propagation of light, is called “wave normal”. Ray Optics Formulaes 1. endstream endstream �@��@�!c]�$M�;� All points on a wavefront act as sources of new waves, and the envelope of these sec-ondary waves constitutes the new wavefront. x�s https://engineering.eckovation.com/important-formulas-for-jee-mains-physics <> endstream /Length 168 1E�@��Z8��l�W��n����[�Eq�anu�aF�a?d�A��V�Y.0R�����ü�� ~����qqd��n�I��4ӎ����J[\�l ~���I�����?��jZ���dZ!o��&4 16 0 obj endobj ֜Z*AubO,�3���-���W8�j ��=���Q���>θ0�F��S>�{��S?��b��̦lC��hS����d��ɂ� >> Huygens Principle:-Wave-front of a wave, at any instant , is defined as the locus of all the particles in the medium which are being disturbed at the same instant of time and are in the same phase of vibration. Here are some wave formulas that are useful when you’re working with optics. Black body radiation, photoelectric effect and Compton Effect. >> Revision Notes on Wave Optics. endobj endobj endobj endstream stream <> <> /Length 292 1. /Matrix [2.2578 0 0 3.8705 0 0] /Subtype /Form /Length 217 endobj /Subtype /Form The resultant wave will have a low amplitude. endobj <> >> According to Huygens’s theory, light consists of waves that travel through a very dilute and highly elastic material medium present everywhere in space”. endobj endobj The speed of light in a medium depends upon the nature of medium. Solution: Given, y=8−3x,y=8-\sqrt{3}x,y=8−3​x, which is straight-line equation. 46 0 obj 7 0 obj The effect of non-uniform energy distribution in the medium as a result of two light waves being superimposed is called interference. Huygens Principle:-Wave-front of a wave, at any instant , is defined as the locus of all the particles in the medium which are being disturbed at the same instant of time and are in the same phase of vibration. 6 0 obj endstream Wave Optics Chapter Ten WAVE OPTICS 10.1 INTRODUCTION In 1637 Descartes gave the corpuscular model of light and derived Snell’s law. endobj >> ∴ wavefront makes an angle of 150∘150{}^\circ150∘ with the x-axis. <> <> Thus, a wave normal is the same as a ray of light. /BBox [0 0 31.8900 18.6020] tions of Schr odinger’s wave equation in quantum mechanics. This is a complete set of notes of Ray Optics and Optical Instruments which is a part of Physics syllabus for NEET, JEE. Wave optics describes the connection between waves and rays of light. Important notes of Physics for NEET, JEE for Wave Optics are useful for all aspirants preparing for entrance exams including JEE, NEET. As discussed in the introduction Huygen’s principle of secondary wavelets could explain many optical phenomena like reflection, refraction, interference, and diffraction, but it could not explain why wavefronts of secondary wavelets are formed in the forward direction and not in the backward direction. ... is known as the wave equation from which he predicted the existence of electromagnetic waves*. In 1678, Huygen's gave the wave theory of light but it was not primarily accepted because of Newton's corpuscles theory of light. 22 0 obj Thus, the section of optics that deals with the behavior of light and its wave characteristics is said to be wave optics. Authors have attempted a simpli ed presentation of the essential topics rather than taking a comprehensive and detailed approach. One supports the particle nature of light; the other supports the wave nature. All the points are equidistant from the source. <> Important notes are also helpful for revision when you have less time and have to study many topics. <> If a plane wavefront falls on a concave mirror, the shape of the reflected light is spherical. 33 0 obj endobj It includes all the topics given in NCERT class 12 Physics textbook. In wave optics, the approximation is carried out by using ray optics for the estimation of the field on a surface. Wave Optics Wave front The wave front at any instant is defined as the locus of all the particles of the medium which are in the same state of vibration. The physics formulas for the 12th standard are provided here which will make it easy for students to revise all they have learned. Or Aan imaginary surface passing through particles oscillating with same phase is known as wavefront A point source of light at a finite distance in an isotropic medium emits a spherical wave /Subtype /Form How do you differentiate between constructive and destructive interference? >> x�m�� /Length 159 In Physics, wave optics or physical optics are a branch of optics in which a phenomenon where ray approximation of geometric optics is not valid such as polarization, diffraction or on interference, etc.. 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CHAPTER FORMULAS & NOTES Formulae For WAVE OPTICS. <> 3. Physics Important Formula. /Matrix [2.1389 0 0 5.4187 0 0] 1 0 obj endobj The 42 0 obj /BBox [0 0 99.2130 33.6610] 18 0 obj When light is emerging from a point source, the wavefronts are spherical in shape. (a) Each point on a wave front acts as a source of new disturbance and emits its own set of spherical waves called secondary wavelets. Also includes the value of Physical constants. /Length 139 <> ��V\Į��^��"%C ��|n]�7�� ���ؒ�:�',�y�O��!#ԝ�*���|CP�R�`����a�}� �굹R>#�tc�L���ؚd_���_��š��m(�XZ�Н�w�u� <> <> Wave optics also called Physic optics deals with the study of various phenomena such as polarization, diffraction, interference and other occurrences where ray approximation of geometric optics cannot be done. endobj Transverse waves are waves in which the direction is perpendicular to the direction of motion. Also includes the value of Physical constants. Ray Optics Formulaes 1. 649314 •! endobj x�mλ x�U�� 17 0 obj 1. >> 44 0 obj <> 26 0 obj Incoherent Source: The sources which do not emit light with constant phase difference are called incoherent sources. When the source of light is linear, the wavefronts are cylindrical in shape. You can determine the wave frequency and period, predict how fast light travels in various materials, and determine how light […] 38 0 obj endobj 27 0 obj x�m�� 9 0 obj >> It is concise and contains all formulas. 41 0 obj endobj 43 0 obj /Matrix [0.7007 0 0 4.0640 0 0] <> <> x�mͽ Authors have attempted a simpli ed presentation of the essential topics rather than taking a comprehensive and detailed approach. If a plane wavefront falls on a converging (or) diverging lens, the emergent light will have a spherical wavefront. No one dared to challenge Newton’s corpuscular theory until Christopher Huygens proposed his wave theory of light in the early 18th century. /Filter /FlateDecode (a) Each point on a wave front acts as a source of new disturbance and emits its own set of spherical waves called secondary wavelets. Real depth and Apparent depth 6. Practice exam posted Thursday, in class Friday •! endobj >> x�U�� What is the meaning of diffraction in wave optics? endobj endstream Important Ray Optics Formulas 2. 10 0 obj Furthermore, as you will see, these principles are a great practical help both in understanding particular wave phenomena and in solving problems. <> If a plane wavefront falls on a plane surface the refracted ray will also have a plane wavefront. 2 0 obj [13 0 R] Wave optics stands as a witness for a famous standoff between two great scientific communities who dedicated their lives to understanding the nature of light. Physics is one of the most feared subjects in class 12 because of its complex theories and physics formulas list. /Tabs /S >> <> >> The general equation for a wave is given by y(x;t) = y m sinkx !t (1) Where y m is the maximum amplitude of oscillation, kis the wave number, and !is the angular frequency. It is known as the bending of waves around an obstacle’s end or through an aperture into the geometrical shadow of the obstacle. stream /Filter /FlateDecode /BBox [0 0 99.2130 31.8900] endobj 3 clickers have quiz data logged, but no registration: •! x�u�=KA����S�f��w�BP���U@AL�߹x�\��5�����1y�;~`|*�? 25 0 obj Here we are providing Allen institute wave optics class notes pdf for JEE Main 2018 exam.Download Wave optics class notes pdf free of cost from below and share the post. /Filter /FlateDecode <> /BBox [0 0 31.0040 30.1180] x�m�=O1��H��Pc;�H� ����T�J����ɵW�,O��kBce���^r�OH�CV$��S����WNo9=����h@�ȉ��ePA'���E�'���P�~�ݽC{��]m,XT�ټ��BȽ|���$�^���-�O�q�_u��.�TO?s��@$��F��h��D�������zKn�b���:�^ K? It explained the laws of reflection and refraction of light at an interface. Huygens’ Principle states a very fundamental property of waves, which will be a useful tool to explain certain wave phenomena, like refraction below. To Register Online Physics Tuitions on Vedantu.com to clear your doubts from our expert teachers and solve the problems easily to score more marks in your CBSE Class 11 Physics Exam. www.ncerthelp.com (Visit for all ncert solutions in text and videos, CBSE syllabus, note and many more) Physics Notes for Class 12 Chapter 10 Wave Optics Wave optics describes the connection between waves and rays of light.

wave optics all formulas pdf

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