Visit examrace for more files and information on sampleobjectivequestions. Download for free or view pdf file physics wave optics mcq for competitive exams. The figure is trying to say that electric field at a point is increasing and decreasing oscillating as the light passes by. Equation of a standing wave on a string with fixed ends frequency of normal. Because light is a wave, the superposition principle is valid to determine the constructive and destructive interferences for light waves. Why is the diffraction of sound waves more evident in daily experience than that of light wave. On our pages, we provide all physics formulas in a simple format in our effort to create a site where a scholar can get any sought after formulas.
They can reflect, refract bend, and interfere with each other. Waves must travel in a medium with one important exception. The michelson interferometer the most common tool in interferometry, the michelson interferometer, shown in figure 1, was invented by albert abraham michelson, the first american to win a nobel. Light passing through a calcite crystal is split into two rays. According to wave theory of light, the light is a form of energy which travels through a medium in the form of transverse wave motion. The human eye has an approximate angular resolution of. Wave optics every one of us uses the camera to click photographs, we use sunglasses when we walk out of our house during daytime, also in our car, we have a mirror of a film. It explained the laws of reflection and refraction of light at an interface. Ray optics is based on rectilinear propagation of light, and deals with mirrors, lenses, reflection, refraction, etc. Light waves that is, electromagnetic waves behave like other waves. Principles of quantum mechanics and laws of wave optics from. Behaviour of wavefront in a mirror, lens and prism 7. The speed of light in a medium depends upon the nature of medium.
Oct, 2016 download the collection of questions asked in previous cbse board exams from the chapter wave optics. Rays are the lines perpendicular to the wavefront, which show the direction of propagation of energy. Apr 30, 2020 chapter notes wave optics, class 12, physics class 12 notes edurev is made by best teachers of class 12. Drawing this figure for a light wave does not mean that light rays move up and down in the air. Nature of light, geometrical optics, optical instrumentation, dispersion, prisms, and aberrations, wave equations, em waves, polarization, fresnel equations, production of polarized light, superposition of waves interference of light, coherence, fraunhofer diffraction, fourier optics, characteristics. In todays class, gaurav gupta sir will talk about the topic of wave optics, youngs double slit experiment,ray optics,prism,compound microscope and telescope, optical instruments, lens makers. 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. Practising the previously asked questions is a good idea to prepare for the exams.
The distance between successive wave fronts is the wavelength. Then you come to the chapter on wave optics, and you are told that light travels as a wave, that it can bend around objects, it can diffract and interfere, etc. Prepare the wave optics chapter by using new and important formulae. If you think the materials are useful kindly buy these legally from publishers. Cbse class 12 physics chapter 10 wave optics formula free pdf download free pdf download of physics class 12 chapter 10 wave optics formulas prepared by expert teachers at.
National council of educational research and training ncert book for class xii subject. To crack these kinds of challenges, one needs to have a proper understanding of physics formula as well as its concepts. Wave optics class 12 physics india science khan academy. All these are nothing but the applications of the wave optics. Youngs double slit experiment wave optics introduction part. Applying the fresnelkirchhoff diffraction formula to waves scattered by a gravitational potential of a lens object, we demonstrate how images of source objects are obtained directly from wave functions without using a lens equation for gravitational lensing. Within the disc, there are different types of walls, as students play with the disks by listening and making any other observations, they can try to infer the shape of the walls. Polarization of light wave optics l 4 class 12 physics. This process, first reported by erasmus bartholinus in 1669, is called double refraction. Interferometry uses this principle to combine waves and study the resulting wave in order to obtain information about the original state of the waves. The corpuscular model predicted that if the ray of light on refraction bends towards the normal then the speed of light would be greater in the. Electromagnetic waves are the only type of wave that do not require a medium at all.
Geometrical optics in describing the propagation of light as a wave we need to understand. The incident ray, the refracted ray and the normal at the point of incidence all lie in the same plane. Melissa kosztowny physics 208 lab 3 wave optics lab instructor. The phenomenon of change in the path of light when it passes from one medium to another. The frequency remains the same as light travels from one medium to another. According to huygens principle each point on the wavefront acts as the source of secondary wavelet. Brewsters law, lens formula, youngs double silt experiment. Indeed, the positions for these two wavefunctions are illde. Wavefront 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. Board questions from wave optics cbseaissce ask physics. This website is created solely for jee aspirants to download pdf, ebooks, study materials for free. Download physics formulas pdf for neet 2017 by studmonk issuu. Class 12 physics notes on wave optics containing top concepts like wave optics, huygens principle, superposition principle, youngs double slit experiment, diffraction, polarization etc.
The wave front and the surface are perpendicular to the plane of the paper fig. When two waves of exactly same frequency coming from two coherent sources travels in a medium, in the same direction simultaneously then due to their superposition, at some points intensity of light is maximum while at some other points intensity is minimum. Download physics formulas pdf for neet 2017 by studmonk. For quick reference, here is a list of the formulae that are involved in various calculations in these two chapters. Nov 22, 2019 in todays class, gaurav gupta sir will talk about the topic of wave optics, youngs double slit experiment,ray optics,prism,compound microscope and telescope, optical instruments, lens makers. The angle of incidence is always equal to angle of reflection.
This document is highly rated by class 12 students and has been viewed 6080 times. In this video i use the concepts of idea, based on the alarm matrix, to help structure students responses. Wave optics, also termed as physic optics is the branch of optics which deals with various phenomenon including diffraction, polarization of light, interference pattern in optics and solved problems, youngs double slit experiment etc. Wave optics lecture about the principles of wave optics. Class 12 physics revision notes for chapter 10 wave optics. We investigate image formations in gravitational lensing systems using wave optics. Something must be vibrating oscillating in order to create a wave. Free optics books download ebooks online textbooks tutorials. Here are some wave formulas that are useful when youre working with optics.
Wave optics describes the connection between waves and rays of light. Download the collection of questions asked in previous cbse board exams from the chapter wave optics. Class 12 important questions for physics wave optics. Longer responses in physics, especially where the students have to draw on multiple disciplines, need a good structure. You can determine the wave frequency and period, predict how fast light travels in various materials, and determine how light. Wave optics propagation, interference and diffraction of waves axel kuhn, oxford 2016 paul ewarts lecture notes and problem sets. Physics formulas basic formulas for physics with examples. As the wave propagates, let us assume in the positive x direction, any point on the wave pattern is displaced by dx in a time dt see figure 1. A wave front is the locus of points having the same phase of oscillation. Using huygens wave theory of light, show that the angle of incidence is equal to angle of reflection in case of reflection of a plane wave by a plane surface.
Wave optics, also referred to as physical optics, is the branch of optics that enables important phenomena such as interference, diffraction, and polarization to be understood. Chapter notes wave optics, class 12, physics class 12 notes. Mystery boxes are small discs that contain a small ball bearing. The incident ray, normal and reflected ray all lie in the same plane. Important topics and formulae in ray optics and wave optics. To register online physics tuitions on to clear your doubts from our expert teachers and solve the problems easily to score more marks in your cbse board exams. Waves and optics regular waves and optics worksheets and solutions wr1b. Here v 1 and v 2 are the speed of light in media 1 and 2 with refractive index pp 12 and respectively.
The time taken for light to travel from one wavefront to another is the same along any ray. New cartesian sign convention for spherical mirrors. As the wave propagates, let us assume in the positive x direction, any point on the wave pattern is displaced by dx in. Apr 22, 2019 why is the diffraction of sound waves more evident in daily experience than that of light wave.
Wave optics and image formation in gravitational lensing. Illustrate with the help of suitable diagram, action of the following when a plane wavefront incidents. The speed v of a wave is given by v t o where is the wavelength of the wave and t 1 is the period of oscillation. Waves optics equations and formulas pdf mymathtables. Note that the observed laws of geometric optics follow from the assumption that light is a wave. Wave optics lecture about the principles of wave optics by n. Eld stops pinhole camera wave optics geometric 12 fermats principle light propagating between two points follows a path, or paths, for which the time taken is an extremum minimum ignoring the wave nature of light basic theory for optical instruments. All the distance measurements are done from pole of the. It is an eminent branch which assumes great importance as a large number of questions in various.
Youngs double slit experiment ii ydse 1 ii interference of light waves jeeneet duration. Huygens principle can be used to derive the law of reflection and the law of refraction. You can determine the wave frequency and period, predict how fast light travels in various materials. Advanced placement physics waves and optics energy. Ray optics and wave optics together can bring you 14 marks.965 451 219 347 924 83 72 416 978 1188 288 784 404 676 126 1456 1492 501 402 1081 427 469 472 452 366 178 541 348 853 1111 1161 812 806