Waves and optics formulas

Every wave has its own wavelength, frequency, speed and time period. There are equations in every field to relate physical quantities to each other and perform calculations. Revision notes on waves and sound waves askiitians. Brewsters law, lens formula, youngs double silt experiment. Physics formulas for class 12 physics formulas list. Wave optics also called physic optics deals with the study of various phenomena such as polarization, diffraction, interference and other occurrences where ray. Appropriate for secondary school students and higher. The nomogram below relates e, h, and the light intensity i in vacuum. Neetaipmt wave optics 1 past 10 years problems with revision duration. This whole back and forth motion makes one complete wave cycle. For quantum mechanical waves, the wavenumber multiplied by the reduced plancks constant is the canonical momentum. Rays coming parallel to the principal axis pass from the focal point rays coming from the focal point travel parallel to the principal axis ray coming from the center of curvature turn back on itself ray hits the mirror at vertex, it reflects with the same angle it does with principal axis if the object is placed between focal. In wave optics, light is considered as an electromagnetic wave. The equation for a diffraction grating is the same as the doubleslit experiment.

Reflection from plane surface angle of incidence equals angle of reflection mirrors completely reflect light. Waves formula list and important points for revision cbse. Wave optics revision notes for iit jee main and advanced. Notes for oscillation and waves frequently revise your notes, and make a list of weak topics and practice more on that. We know that light shows both the particle and wave characteristics. Rays are the lines perpendicular to the wavefront, which show the direction of propagation of energy. Whithams extension of geometrical optics to nonlinear diffraction is applied to solitary waves of reference amplitudea 0 in water of uniform depthd 0 on the hypotheses thata 0. Physics formulas optics cheat sheet in concave mirrors. Optics, in a simple manner, is used to describe the behaviour of visible light, infrared light, and the ultraviolet. Ap physics formulas waves and optics flashcards quizlet. The best app for cbse students now provides wave optics class 12 notes latest chapter wise notes for quick preparation of cbse board exams and schoolbased annual examinations. However, in this unit we will learn the particle characteristics of the light. A schematic diagram of the apparatus that young used is shown in figure 37.

The wave formula for the velocity of sound is given by, v f where, v velocity of the wave, f frequency of the wave. From this app, you will get a list of important physics formulas and equations to keep on hand. Three phenomena reflection, refraction, and diffraction help you predict where a ray or rays of light will go. Physics formulas opticscheat sheet in concave mirrors. The law of reflection i r and the snells law of refraction p p p 12 21 21 sini v sinr v can be derived using the wave theory. Interference in light waves is not easy to observe because the wavelengths are so short. You can also call it as revision notes for wave optics. Physics formulas optics cheatsheet physics tutorials. Optics usually describes the behaviour of visible, ultraviolet, and infrared light. Mar 05, 2019 cbse class 12 physics chapter 10 wave optics notes in pdf are available for free download in mycbseguide mobile app. This can happen due to the properties of the medium the wave travels in, or the structure of the waveguide. The waves emerging from this slit arrive at a second barrier that contains two parallel slits s 1 and s 2. 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.

Light wave and optics formulas light waves that is, electromagnetic waves behave like other waves. Optics optic is one of the branch of physics which deals with the light and properties of it. Refraction and reflection of plane waves using huygens principle. The electric e and magnetic m fields are perpendicular to each other and to the propagation vector k, as shown below.

Modes generally provide an economical description of waves, reducing complicated wave functions to finite numbers of mode amplitudes, as in propagating fiber modes and ideal laser beams. When two waves interfere, the medium takes on a new resultant shape which reflects the simultaneous influence of both waves upon the particles of the medium. Cbse notes class 12 physics wave optics aglasem schools. At the end of the course unit you should be able to. Learn optics formulas with free interactive flashcards. Now if the systems are put into vertical simple harmonic motion with the same amplitude, which. All these are nothing but the applications of the wave optics. You can determine the wave frequency and period, predict how fast light travels in various materials, and determine how light.

Note that the observed laws of geometric optics follow from the assumption that light is a wave. Define the concept of wave, describe the wave motion and derive the wave equation. It arises in fields like acoustics, electromagnetics, and fluid dynamics historically, the problem of a vibrating string such as. You can determine the wave frequency and period, predict how fast light travels in. In these waves and optics notes pdf, you will study the concepts of waves and optics learnt at school from a more advanced perspective and goes on to build new concepts. Free pdf download of physics class 12 chapter 10 wave optics formulas prepared by expert teachers at. 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. A wave front is the locus of points having the same phase of oscillation. Some of the topics will be covered in this unit are. This ensures that any phase difference in the light from the two slits is due entirely to the different path lengths the two waves travel. Narrator i want to show you the equation of a wave and explain to you how to use it, but before i do that, i should explain what do we even mean to have a wave equation. Electromagnetic radiation light optics quantum mechanics most fundamental description of nature.

Wave optics class 12 notes physics mycbseguide cbse. It occurs when the velocities of different components of a light wave depend on the wavelengths of those components. But finding a corresponding mode description for counting the best orthogonal channels for communicating between surfaces or volumes, or for optimally describing the inputs and. 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. This change may misalign the laser if its two windows are symmetrical rather than parallel. Mar 24, 2019 important notes of physics for neet, jee for wave optics are useful for all aspirants preparing for entrance exams including jee, neet.

Start studying ap physics formulas waves and optics. It includes all formulas from the chapters on light and electricity. Wave optics describes the connection between waves and rays of light. Light and optics double slit interference physics 299. Enhance students knowledge in the areas of waves and geometrical optics. You can use these physics formulas as a quick reference for when youre solving problems in electricity and magnetism, light waves and optics, special relativity, and modern physics.

Physics is a involves remembering and understanding a number of physics formulas and their concepts. A coast guard weather station observes that there is a vertical distance from high point to low point of 4. Use the single slit equation for y m to calculate an averaged value for a see p. Refraction, refractive index n, snells law n 1 sin. Frequently used equations the physics hypertextbook. Other important optics topics include interference, polarization, and fiber optics. Mar 08, 2017 waves formula list and important points in this video, we will revise the topic waves. Ray optics and wave optics together can bring you 14 marks. The wave equation is an important secondorder linear partial differential equation for the description of waves as they occur in classical physicssuch as mechanical waves e. The light intensity, i is measured in wattsm2, e in voltsm, and h in amperesm. All of geometric optics can be based on fermats principle. What does it mean that a wave can have an equation.

Important notes of physics for neet, jee for wave optics are useful for all aspirants preparing for entrance exams including jee, neet. The meeting up of two waves while traveling in opposite directions along the same medium is known as interference. Physics formulas pdf for class 11 and class 12 physics formulas from mechanics, waves, optics, heat and thermodynamics, electricity and magnetism and modern physics. Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. 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, and its modifications, play fundamental roles in continuum mechanics, quantum mechanics, plasma physics, general relativity, geophysics, and many other scientific and technical disciplines. Important topics and formulae in ray optics and wave optics. Choose from 92 different sets of optics formulas flashcards on quizlet. Wave numbers and wave vectors play an essential role in optics and the physics of wave scattering, such as xray diffraction, neutron diffraction, electron diffraction, and elementary particle physics. Angular deviation of a prism depends on the prism angle. Sep 21, 2015 source aakash institution and expert notes these are my short notes of neet wave optics physics with 95 % of all formulas needed for neet wave optics with as usual meaning of terms like n for refractive index i for intensity a for amplitude etc. Mostly algebra based, some trig, some calculus, some fancy calculus. 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.

Because light is an electromagnetic wave, other forms of electromagnetic. If you take any system and disturb it from a stable equilibrium, the resultant motion will be waves and vibrations. The incident ray, the refracted ray and the normal at the point of incidence all lie in the same plane. Relation between refractive indices according to snells law by snells law 4. Physics formulas for class 12 are one of the most effective tools that can help 12th standard students fetch high marks in their board examination and other competitive exams. Because light is a wave, the superposition principle is valid to determine the constructive and destructive interferences for light waves.

You can also call it as revision notes for wave optics or cheat sheet of wave optics. Waves formula list and important points in this video, we will revise the topic waves. Light waves can be bent and reflected to form new and sometimes altered images. Optics is a branch of physics that deals with the determination of behaviour and the properties of light, along with its interactions with the matter and also with the instruments which are used to detect it.

It begins with explaining ideas of superposition of harmonic oscillations leading to. Waves formula list and important points for revision. Important notes are also helpful for revision when you have less time and have to study many topics. Physics notes for class 12 chapter 10 wave optics wave optics describes the connection between waves and rays of light. Class 12 physics notes on chapter 10 wave optics are. Optics the branch of physics consisting properties of light. The wave equation is the simplest example of a hyperbolic differential equation. Here v 1 and v 2 are the speed of light in media 1 and 2 with refractive index pp 12 and respectively. Throughout the above description we have implicitly assumed that the light waves from the two slits s 1 and s 2 are in phase with each other. Here are some wave formulas that are useful when youre working with optics. Please practice handwashing and social distancing, and check out our resources for adapting to these times. Consequently light coming out from the holes s 1 and s 2 will have a fixed phase relationship only for 10 9 sec. Oct 31, 2019 physics is filled with equations and formulas with various fields. 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.

Wave optics predicts the phenomenon such as interference and diffraction of light. Calculation tools including interactive web calculators for the most common physics equations related to waves and optics. Rays coming parallel to the principal axis pass from the focal point rays coming from the focal point. The speed of light in a medium depends upon the nature of medium. Total energy of a springmass system when mass m1 is hung from spring a and a smaller mass m2 is hung from spring b, the springs are stretched by the same distance. Heres a list of some of the most important equations in physics ii courses. Light waves that is, electromagnetic waves behave like other waves. Understanding how light rays can be manipulated allows us to create better contact lenses, fiber optic cables, and high powered telescopes. Apr 26, 2016 science physics waves and optics math formula astrophysics formulas astrophysikalische formeln for science handy chart with math formulas. Wave motionis the disturbance, set up in the medium, due to the repeated periodic motion of the particles of the medium and travels from the particle to particle, the particles themselves keep vibrating about their mean positions. Wavefront of a wave, at any instant, is defined as the. This is a complete set of notes of wave optics which is a part of physics syllabus for neet, jee. In oscillations and waves, you will find many equations so get familiar with these equations and understand the meaning of each term in the equation.

So, go ahead and check the important notes for class 12 physics wave optics. Hence any interference pattern formed on the screen would last only for 10 9 sec. The phenomenon of change in the path of light when it passes from one medium to another. Derivation of the onedimensional wave equation for a string x x y ux, t. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The physics formulas for class 10 are based on ncert science textbook. Dispersion is the optical phenomenon that creates rainbows from prisms. So imagine youve got a water wave and it looks like this.

For quick reference, here is a list of the formulae that are involved in various calculations in these two chapters. Sph 103 waves and optics lecture notes january to april 2016 purpose. Cbse class 12 physics chapter 10 wave optics formula free pdf. Even if all the atoms were emitting light pulses under similar conditions, waves from different atoms would differ in their initial phases. They can reflect, refract bend, and interfere with each other. Ocean waves are observed to travel along the water surface during a developing storm. Sat subject test physics formulas flashcards quizlet. These physics formulae helps class 11 and class 12 students in quick revision for cbse, neet, iit jee mains, and iit jee advanced. You can determine the wave frequency and period, predict how fast light travels in various materials. To register online physics tuitions on to clear your doubts from our expert teachers and solve the problems easily to score more marks in.