The densitythickness is the same in each case, so the three slabs will. Dual nature of matter and radiations part i youtube. Dual nature of radiation, photoelectric effect hertz and lenards observations. Properties of cathode rays i cathode rays are not electromagnetic rays. Learn and practice from dual nature of matter and radiation quiz, study notes and study tips to help you in neet physics preparation. Dual nature of radiation and matter the maximum kinetic energy of photoelectron emitted from the surface of work function f due to incidence of light of frequency n is e. Important questions of dual nature of radiation and matter. Two beams one of red light and other of blue light of the same intensity are incident on a metallic surface to emit photoelectrons which one of the two beams emits electrons of greater kinetic energy. Hindi dual nature of matter and radiation unacademy plus. For example a beam of electrons can be diffracted just like a beam of light or a water wave. At the beginning of the twentieth century, scientists unravelled one of the bestkept secrets of nature the wave particle duality or the dual nature of matter and radiation. Class 12 ncertcbse board notes for dual nature of matter and radiation.
Dual nature of radiation and matter class 12 in one shot full chapter revision gaurav. The dual nature of matter and the dual nature of radiation were revolutionary concepts of physics. It is followed by the introduction of quantum theory of radiation by max planck. Dual nature of radiation and matter 69 a no electrons will be emitted as only photons can emit electrons. Dual nature of radiation and matter pu2imp deeksha. All india free mock test for jee main attempt now subscribe to youtube channel for jee exam. Questions on dual nature of matter and radiation mcqs multiple choice questions with answers on dual nature of matter and radiation for neet and jee main. There are four types of electron emission, namely, thermionic emission, photoelectric emission, field emission and secondary emission. Ncertcbse board notes for dual nature of matter and. These rays are produced in a discharge tube at a pressure below 0.
Wave theory of electromagnetic radiations explained the phenomenon of interference, diffraction and polarization. Dual nature of matter and radiation geli question papers. The light which is a form of radiation from the sun, also possess dual nature. Ncert solutions class 12 physics chapter 11 dual nature of radiation and matter pdf are provided here for free. Unlike x rays and gamma rays, some highenergy radiations travel at less than the speed of light. Important notes of physics for neet, jee for dual nature of radiation and matter are useful for all aspirants preparing for entrance exams including jee, neet. Dual nature of radiation and matter class 12 notes physics. This is a complete set of notes of dual nature of radiation and matter which is a part of physics syllabus for neet, jee. The best app for cbse students now provides dual nature of radiation and matter class 12 notes latest chapter wise notes for quick preparation of cbse board exams and schoolbased annual examinations. Dual nature of matter and radiation class 12 notes pdf download the elementary particle in an atom having negative charge of magnitude 1.
If they get sufficient energy electrons can escape out of the metal surface. Concepts photo electric effect discovered by hertz 1887. The notes are prepared by best faculties across india. Board notes offered by thinkiit is helpful in securing good marks in class 12. One example of this kind of radiation is the electron, first established as a negatively charged particle in 1897 by the english. In phenomena like interference, diffrection etc wave nature is exhibited. Neet ntanational eligibility cum entrance test medical. One kind is particulate radiation, which involves tiny fastmoving particles that have both energy and mass. Ncert solutions class 12 physics chapter 11 dual nature of. Explain davisson and germer experiment to v erify the wave nature ot elle ctrons. However, the free electrons cannot normally escape out of the metal surface.
Dual nature of matter and radiation notes for iit jee, download pdf. This is a question on dual nature of matter and radiation. Interaction of radiation with matter perry sprawls, ph. These ncert class 12 physics solutions for chapter 11 dual nature of radiation and matter can help students to clear any doubt instantly.
Dual nature of matter and radiation class 12 notes pdf. If the frequency of incident light is doubled, then maximum kinetic of emitted photon will be. Apr 22, 2019 get here ncert solutions for class 11 physics chapter 12. Dual nature of radiation and matter watch more videos at. Dual nature of radiation and matte electron emission metals have free electrons negatively charged particles that are responsible for their conductivity. Nature reveals a waveparticle dualityan ambiguity unchar acteristic of science.
Thomson called them streams of negative corpuscles. Waveparticle duality postulates that all particles exhibit both wave and particle properties. The masses of all the samples are the same but the densities are different. Chapter eleven dual nature of matternot to be republished. Dual nature of matter and radiation notes for iit jee.
Cbse class 12 physics chapter 11 dual nature of radiation and matter notes in pdf are available for free download in mycbseguide mobile app. Matter waves are a central part of the theory of quantum mechanics, being an example of waveparticle duality. Online textbook table of contents chapter contents introduction and overview interaction types photon interactions photoelectric compton coherent scatter pair production electron interactions electron range linear energy transfer positron interactions 1 of 30. This document is highly rated by class 12 students and has been viewed 2482 times. These notes are combined with chapter12 atoms and chapter nuclei. Physics question bank for entrance exam dual nature of. Short notes on dual nature of matter and radiation download pdf. You can also download notes in pdf format at end of the post. Dual nature of radiation and matter for class 12 xii physics. The aim of present self learning module is to train the minds of the learners in. Compton scattering by free electrons compton scattering, like thomson scattering, is the interaction between electromagnetic radiation and a free electron, but in this case there is an energy transfer to the electron both the photon and the electron must be considered as particles. Physics notes class 12 chapter 11 dual nature of radiation and matter cathode rays cathode rays are the stream of fast moving electrons. Jan 11, 2018 dual nature of radiation and matter watch more videos at. We want to describe the interaction of radiation with matter as a scattering process.
Feb 27, 2019 the dual nature of radiation here basically mean the wave nature and the particle nature. Ncert solutions for class 12 physics chapter 11 dual nature. Dual nature of matter and radiation class 12 notes pdf download. Khan academy is a nonprofit with the mission of providing a free, worldclass education for anyone, anywhere. Some of these were identified initially by their particulate nature and only later were shown to travel with wavelike character. The coulomb interaction is longranged so the slowing down of the charged particles is most effective and is a continuous process. National eligibility cum entrance testug 2020 neetug2020 will be conducted by the central board of secondary education cbse, for admission to mbbsbds courses in india in medicaldental colleges run with the approval of medical council of indiadental council of india under the union ministry of health and family welfare, government of india except for the institutions established. Xrays of wave length a, fall on a photo sensitive surface emitting electrons. Cbse class 12 physics revision notes for chapter 11 dual. In photo electric effect, compton effect etc particle nature is observed. The phenomenon of emission of electrons from a metal surface is called electron. Jan 09, 2020 physics question bank for entrance exams subscribe for latest updates for jee main, aipmt and other entrance exam prepration, question bank for physics dual nature of matter and radiation is given below. The dual nature of matter and the uncertainty principle. Physics notes class 12 chapter 11 dual nature of radiation.
Mcqs on dual nature of matter and radiation for jee main and neet, test number 02 after you attempt the test, click. These ncert solutions for class 12 of physics subject includes detailed answers of all the questions in chapter 11 dual nature of radiation and matter provided in ncert book which is prescribed for class 12 in schools. Get to the point neet ntanational eligibility cum entrance test medical physics questions for your exams. Important notes are also helpful for revision when you have less time and have to study many topics. Dual nature of matter and radiation neet physics mcqs, study. It is in accordance with law of conservation of energy. Thomson and sir william crookes studied the discharge of electricity through gases.
Further, the value of em was found to be independent of the nature of the materialmetal used as the cathode. Dual nature of radiation and matter important points. The elementary particle in an atom having negative charge of magnitude 1. Neet physics dual nature of radiation and matter questions. Photon concept of electromagnetic radiation in interaction of radiation with matter, radiation behaves as if it is made up of particles called photons. Particulate radiation is primarily produced by disintegration of an unstable atom and includes alpha and beta particles. Light seems to have a dual natureparticlelike in some situations, wavelike in. Dual nature of matter and radiation introdcution light exhibit dual nature wave nature and particle nature. The photon of blue light emits electrons of greater kinetic energy. Explain the,e uect of increase of i frequency ii intensity of the incident radiation on plhoto electrons emitted by a metal. It involves conversion of light energy into electrical energy.1468 1095 1296 1213 911 118 956 1466 1251 663 1142 1502 314 162 1233 318 1105 1435 468 847 734 343 1220 1312 1280 449 593 173 493 1086 1019 212 1301 328 749 21