He performed experiment with thin foil of gold in place of nickel crystal. Einstein in 1905 suggested that light has dual nature, i.e. DUAL NATURE OF RADIATION AND MATTE ELECTRON EMISSION Metals have free electrons (negatively charged particles) that are responsible for their conductivity. De Broglie equation relate the particle character with the wave character of matter. The wave nature of light can be observed in the phenomena of interference, diffraction and polarisation. These rays are produced in a discharge tube at a pressure below 0.01 rom of mercury. Consists of several component colors of different wavelengths ii. Ch -- dual nature of radiation and matter. This document is highly rated … Electromagnetic radiation has the dual nature: its exhibits wave properties and particulate (photon) properties. ... Class 11 (11) Competitive Exams for Class 11 (10) MCQ Class 11 (10) NCERT (10) JEE (8) Class 12 (7) As the temperature is further increased, the colour of the radiation emitted changes from red to yellow to white and finally purple as the temperature becomes very high. It also is a spectrum consisting of radio waves, microwaves, infrared waves, visible light, ultraviolet radiation, X-rays, and gamma rays. In this blog we will talk minor details … Required fields are marked *, Louis de Broglie, a French physicist, in 1924, suggested that all microscopic as well as macroscopic objects possesses dual character. On the other hand, radiations exhibit a phenomenon of interference and diffraction which indicated that they possess wave nature. Dual nature of radiation and matter class 12 1. De Broglie wavelength of the electron from the potential applied to accelerate it. 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 school-based annual examinations. Maxwell’s equation of electromagnetism and Hertz experiments on the generation and detection of electromagnetic waves in 1887 strongly established the wave nature of light. 5. Vibgyor stands for – Violet, Indigo, Blue, Green, Yellow, Orange, and Red. While photoelectric effect and Compton effect involve energy and momentum transfer, radiation behaves as if it is made of a bunch of particles-photons show particle nature of a wave. Download Offline Apps and Solutions based on updated NCERT Books for 2020-21. It also is a spectrum consisting of radio waves, microwaves, infrared waves, visible light, ultraviolet radiation. Photoelectric Effect The phenomenon of emission of photoelectron from the surface of metal, when a light beam of suitable frequency is incident on it, is called photoelectric effect. CBSE Previous Year Question Papers Class 10, CBSE Previous Year Question Papers Class 12, NCERT Solutions Class 11 Business Studies, NCERT Solutions Class 12 Business Studies, NCERT Solutions Class 12 Accountancy Part 1, NCERT Solutions Class 12 Accountancy Part 2, NCERT Solutions For Class 6 Social Science, NCERT Solutions for Class 7 Social Science, NCERT Solutions for Class 8 Social Science, NCERT Solutions For Class 9 Social Science, NCERT Solutions For Class 9 Maths Chapter 1, NCERT Solutions For Class 9 Maths Chapter 2, NCERT Solutions For Class 9 Maths Chapter 3, NCERT Solutions For Class 9 Maths Chapter 4, NCERT Solutions For Class 9 Maths Chapter 5, NCERT Solutions For Class 9 Maths Chapter 6, NCERT Solutions For Class 9 Maths Chapter 7, NCERT Solutions For Class 9 Maths Chapter 8, NCERT Solutions For Class 9 Maths Chapter 9, NCERT Solutions For Class 9 Maths Chapter 10, NCERT Solutions For Class 9 Maths Chapter 11, NCERT Solutions For Class 9 Maths Chapter 12, NCERT Solutions For Class 9 Maths Chapter 13, NCERT Solutions For Class 9 Maths Chapter 14, NCERT Solutions For Class 9 Maths Chapter 15, NCERT Solutions for Class 9 Science Chapter 1, NCERT Solutions for Class 9 Science Chapter 2, NCERT Solutions for Class 9 Science Chapter 3, NCERT Solutions for Class 9 Science Chapter 4, NCERT Solutions for Class 9 Science Chapter 5, NCERT Solutions for Class 9 Science Chapter 6, NCERT Solutions for Class 9 Science Chapter 7, NCERT Solutions for Class 9 Science Chapter 8, NCERT Solutions for Class 9 Science Chapter 9, NCERT Solutions for Class 9 Science Chapter 10, NCERT Solutions for Class 9 Science Chapter 12, NCERT Solutions for Class 9 Science Chapter 11, NCERT Solutions for Class 9 Science Chapter 13, NCERT Solutions for Class 9 Science Chapter 14, NCERT Solutions for Class 9 Science Chapter 15, NCERT Solutions for Class 10 Social Science, NCERT Solutions for Class 10 Maths Chapter 1, NCERT Solutions for Class 10 Maths Chapter 2, NCERT Solutions for Class 10 Maths Chapter 3, NCERT Solutions for Class 10 Maths Chapter 4, NCERT Solutions for Class 10 Maths Chapter 5, NCERT Solutions for Class 10 Maths Chapter 6, NCERT Solutions for Class 10 Maths Chapter 7, NCERT Solutions for Class 10 Maths Chapter 8, NCERT Solutions for Class 10 Maths Chapter 9, NCERT Solutions for Class 10 Maths Chapter 10, NCERT Solutions for Class 10 Maths Chapter 11, NCERT Solutions for Class 10 Maths Chapter 12, NCERT Solutions for Class 10 Maths Chapter 13, NCERT Solutions for Class 10 Maths Chapter 14, NCERT Solutions for Class 10 Maths Chapter 15, NCERT Solutions for Class 10 Science Chapter 1, NCERT Solutions for Class 10 Science Chapter 2, NCERT Solutions for Class 10 Science Chapter 3, NCERT Solutions for Class 10 Science Chapter 4, NCERT Solutions for Class 10 Science Chapter 5, NCERT Solutions for Class 10 Science Chapter 6, NCERT Solutions for Class 10 Science Chapter 7, NCERT Solutions for Class 10 Science Chapter 8, NCERT Solutions for Class 10 Science Chapter 9, NCERT Solutions for Class 10 Science Chapter 10, NCERT Solutions for Class 10 Science Chapter 11, NCERT Solutions for Class 10 Science Chapter 12, NCERT Solutions for Class 10 Science Chapter 13, NCERT Solutions for Class 10 Science Chapter 14, NCERT Solutions for Class 10 Science Chapter 15, NCERT Solutions for Class 10 Science Chapter 16, Important Questions For Class 11 Chemistry, Important Questions For Class 12 Chemistry, CBSE Previous Year Question Papers Class 10 Science, CBSE Previous Year Question Papers Class 12 Physics, CBSE Previous Year Question Papers Class 12 Chemistry, CBSE Previous Year Question Papers Class 12 Biology, ICSE Previous Year Question Papers Class 10 Physics, ICSE Previous Year Question Papers Class 10 Chemistry, ICSE Previous Year Question Papers Class 10 Maths, ISC Previous Year Question Papers Class 12 Physics, ISC Previous Year Question Papers Class 12 Chemistry, ISC Previous Year Question Papers Class 12 Biology. Class 12th Physics – 11 Dual Nature of Radiation and Matter – NCERT Solutions ... Dual Nature of Radiation and Matter – Solutions. While photoelectric effect and Compton effect involve energy and momentum transfer, radiation behaves as if it is made of a bunch of particles-photons show particle nature of a wave. Lect 03: Wave Nature of Matter- De Broglie hypothesis. Properties of Cathode Rays (i) Cathode rays are not electromagnetic rays. Free PDF download of Class 12 Physics revision notes & short key-notes for Chapter 11 - Dual Nature of Radiation and Matter to score high marks in exams, prepared by expert Physics teachers from latest edition of CBSE(NCERT) books. In the experiment the intensity of electron beam is … Hence, we assume the dual nature of light. To represent electromagnetic radiation, various kinds of units are used. Consider a ball of mass 0.1 kg moving with a speed of 60 m/s. Emission & absorption spectra show the line spectrum. Ignore the small initial speeds of the electrons. Light has a dual nature 1.Sometimes it behaves like a particle (called a photon), which explains how light travels in straight lines ... ALL electromagnetic radiation is light, but our eyes can only see a small portion – called visible light An electromagnetic wave has dual (wave–particle) nature. ... Show that the wavelength of electromagnetic radiation is equal to the de-Broglie wavelength of its quantum (photon). ( Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter ) www.free-education.in is a platform where you can get pdf notes from 6th to 12th class notes, General Knowledge post, Engineering post, Career Guidelines , English Speaking Trick , How to crack interview and lots more. Dual Nature of Radiation and Matter Class 12 Physics Revision Notes cover the following topics for your board exam. CBSE chapter wise practice papers for class 12 Physics chapter 11 Dual Nature of Radiation and Matter for free download in PDF format. Solve free mcqs on dual nature of electromagnetic radiation class 11 chemistry ch2, helpful for CBSE, NEET / AIPMT & JEE preparation. Ncert Solutions. Louis de Broglie, a French physicist, in 1924, suggested that all microscopic as well as macroscopic objects possesses dual character. (3) The phenomenon of black body radiation and Photoelectric effect also Prove the particle nature of radiation. On the other hand, the photoelectric effect is supported by the particle nature of light. Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter Photoelectric effect occurs when light of frequency greater than threshold frequency fall on metal plate, electrons get emitted from the metal surface. Show that de-Broglie wavelength of photon equals electromagnetic radiation. When an electron strikes a zinc sulphide screen, a spot of light known as scintillation is produced. This is the best revision video of class 12 physics. This effect is known as the photoelectric effect. The localised character is possessed by the particles .Hence electrons has particle character. These fields are transmitted in the forms of waves called electromagnetic waves or electromagnetic radiation. The wavelength of the wave associated with any material particle was calculated as: In case of photon, if it is assumed to have a wave character, its energy is given by E = hν where ν is the frequency of the wave and h is Pla… Properties of Cathode Rays (i) Cathode rays are not electromagnetic rays. An electromagnetic wave has dual (wave–particle) nature. CBSE class 12 chapter wise notes based on chapter 11, Dual Nature of Radiation and Matter, of class 12 NCERT Physics textbook are available in this article. (2) Milliken Oil Drop experiment for determination of charge on electron also show that electron has particle character. Free PDF download of Important Questions with Answers for CBSE Class 12 Physics Chapter 11 - Dual Nature of Radiation and Matter prepared by expert Physics teachers from latest edition of CBSE(NCERT) books. Find more@learnfatafat The photons emitted from a source, travel through space with the same speed c (equal to the speed of light). This document is highly rated … So it may be concluded that electromagnetic radiations possess dual nature. Electromagnetic Radiation is basically light, which is present in a rainbow or a double rainbow. CBSE Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter Notes in PDF are available for free download in myCBSEguide mobile app. – This is made up of distinct lines. Dual Nature Of Matter And Radiation Class 12 Notes Pdf Download • The elementary particle in an atom having negative charge of magnitude 1.6 x 10-19 C and mass of 9.1 x 10-19 kg is called electron. Q:-An infinite line charge produces a field of 9 × 10 4 N/C at a distance of 2 cm. ​Einstein in 1905 suggested that light has dual nature, i.e. Lovedeep Singh 2. Topics and Subtopics in NCERT Solutions for Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter: Section Name Topic Name 11 Dual Nature of Radiation and Matter 11.1 Introduction 11.2 Electron Emission 11.3 Photoelectric Effect 11.4 Experimental Study of Photoelectric Effect 11.5 Photoelectric Effect and Wave Theory of Light 11.6 Einstein’s Photoelectric Equation: Energy […] However, the free electrons cannot normally escape out of the metal surface. The Dual Nature of Light. DUAL NATURE OFRADIATION AND MATTER Lect. CLEAR EXAM has provided you with the detailed solutions for every question of the Chapter 11 - Dual Nature of Radiation and Matter. Jan 05, 2021 - Wave Nature of Electromagnetic Radiation, Absorption Class 11 Notes | EduRev is made by best teachers of JEE. Dual Nature of Radiation and Matter MCQ Questions with Answers Pdf Question 1. These notes are combined with chapter-12 Atoms and chapter-13 Nuclei. When an electron in an atom excites and de-excites, this spectrum occurs. Topics and Subtopics in NCERT Solutions for Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter: Section Name Topic Name 11 Dual Nature of Radiation and Matter 11.1 Introduction 11.2 Electron Emission 11.3 Photoelectric Effect 11.4 Experimental Study of Photoelectric Effect 11.5 Photoelectric Effect and Wave Theory of Light 11.6 Einstein’s Photoelectric Equation: … Class 12th Physics – 11 Dual Nature of Radiation and Matter MCQs Photoelectric current is directly proportional to the: (i) Frequency of the incident light (ii) Intensity of the incident light Only (i) is true Planck’s Quantum Theory – It states, “One photon of light carries exactly one quantum of energy.” Wave theory of radiation cannot explain the phenomena of the photoelectric effect and black body radiation. Emission of energy by electrons generates emission spectrum. Dual Nature of Radiation and Matter Class 12 Notes Chapter 11 Question 1. – It states, “One photon of light carries exactly one quantum of energy.” Wave theory of radiation cannot explain the phenomena of the photoelectric effect and black body radiation. The minimum energy needed by an electron to come out from a metal surface is known as “work function” of the metal. Dual Nature of Radiation and Matter Class 12 Physics MCQs Pdf. CBSE Class 12 Physics Revision Notes Chapter-11 Dual Nature of Matter and Radiation Electron emission: The phenomenon of emission of electrons from the surface of a metal. Electromagnetic Radiation is basically light, which is present in a rainbow or a double rainbow. Dual Nature Of Radiation And Matter NCERT Solutions – Class 12 Physics. 391 Dual Nature of Radiation and Matter polarity is reversed, the electrons are repelled and only the most energetic electrons are able to reach the collector A. Contents1 Matter wave or a de Broglie wave2 Verification of dual character of electrons2.1 (1) Davisson and Germer’s experiment2.2 (2) Thomson’s experiment3 Verification of Particle Character4 Derivation of Bohr’s postulate of angular momentum from de Broglie equation Matter […] Find more@learnfatafat b) If, deuterons and alpha particle are accelerated through same potential, find the ratio of the associated de-Broglie wavelengths of two. She has started this educational website with the mindset of spreading Free Education to everyone. A. That is why we do not observe any wave nature associated with the motion of a running car or a cricket ball. wave nature as well as particle nature. The era in which we are living has changed its ambience from being manual to all digital. Author of this website, Mrs Shilpi Nagpal is MSc (Hons, Chemistry) and BSc (Hons, Chemistry) from Delhi University, B.Ed (I. P. University) and has many years of experience in teaching. Electromagnetic wave theory This theory was put forward by James clark Maxwell in 1864.. Filed Under: Chemistry, Class 11, Structure Of Atom Tagged With: Davisson and Germer experiment, de Broglie equation, de Broglie wave, verification of particle character, verification of wave character. Cathode ray consists of(a) photons (b) electrons(c) protons (d) α-particles Answer Answer: (b) Cathode ray consists of electrons Q.2. In this blog we will talk minor details of photoelectric effect. 18. When such a body is heated, it becomes red-hot. Identify the experiment. While photoelectric effect and Compton effect involve energy and momentum transfer, radiation behaves as if it is made of a bunch of particles-photons show particle nature of a wave. – It is a characteristic of a molecule. The cause of this fluorescence was attributed to(a) the radiations which appeared to be coming… Click here. NCERT 12 Physics Dual Nature Of Radiation And Matter Chapter 11 Exercise. By absorbing energy from the incident electromagnetic radiation, ... CBSE Class 12th Physics Notes: Dual Nature of Radiation and Matter Part - II. An electromagnetic radiation is a particle as well as a wave thus it is interesting to study its nature in quantum theory. Hence, the matter is said to possess dual nature, i.e., it has both the properties of a particle and as well as a wave. Your email address will not be published. He observed that if the beam of electrons after passing through the thin foil of gold is received on the photographic plate placed perpendicular to the direction of the beam, a diffraction pattern is observed. Louis de Broglie, in 1924 extended the idea of photons to material particles such as electron and he proposed that matter also has a dual character-as wave and as particle. NCERT solutions for class 12 physics chapter 11 dual nature of radiation and matter additional exercise . The wave associated with the particle is called a. Davisson and Germer in 1927 observed that when a beam of electrons is allowed to fall on the surface of nickel crystal and the scattered or reflected rays are received on a photographic plate, a diffraction pattern (consisting of number of concentric rings) similar to that produced by X-ray, is obtained. Wave nature of electromagnetic radiation is characterized by its following three … Dual nature of radiation: Wave theory of electromagnetic radiation explains the phenomenon of interference, diffraction, and polarisation. An electron and alpha particle have the same de-Broglie wavelength associated with them. The wave associated with the particle is called a matter wave or a de Broglie wave. NCERT Solutions for Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter Exercises Solutions and Additional Exercises Solutions to study online without downloading for new academic session 2020-2021. Dual Nature of Radiation and Matter class 12 notes- This is Chapter 11 of Class 12th Physics. Schematic diagram of an experimental set up to study the wave nature of electron is shown below. Dual Nature of Radiation and Matter (chapter 11) Cathode Rays Cathode rays are the stream of fast moving electrons. He suggested that when electrically charged particles move with an acceleration alternating electrical and magnetic fields are produced and transmitted. in this video we cover all important topics topics covered---- photoelectric effect explanation of photoelectric effect terms related to photoelectric effect free electron work function. where  m is the mass of the photon and c is the velocity of light. CBSE class 12 chapter wise notes based on chapter 11, Dual Nature of Radiation and Matter, of class 12 NCERT Physics textbook are available in this article. Dual Nature of Radiation and Matter Class 12 CBSE Revision Notes. It also is a spectrum consisting of radio waves, microwaves, infrared waves, visible light, ultraviolet radiation, X-rays, and gamma rays. Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter. In other words, it emits red coloured light. A discharge takes place between the two electrodes on applying the electric field to the gas in the discharge tube. The photocurrent is found to decrease rapidly until it drops to zero at a certain sharply defined, critical value of the negative potential V 0 on the plate A. wave nature as well as particle nature. Since X-ray are electromagnetic waves ie.they are confirmed to have wave character, therefore electrons must also have wave character. Lect 04: Davisson and Germer Experiment It consists of closely spaced lines called bands. Class 12th Physics Chapter 11 Dual Nature Of Radiation And Matter Revision Notes & Important Question (www.free-education.in) www.free-education.in Page 2 o He used electric and magnetic fields (across the discharge tube), mutually perpendicular to each other and the emitted electrons de Broglie relationship has no significance in everyday life. Physics Notes Class 12 Chapter 11 Dual Nature of Radiation and Matter Cathode Rays Cathode rays are the stream of fast moving electrons. thnx a lot respected mam, good and excellent notes …….. ALL electromagnetic radiation is light, but our eyes can only see a small portion – called visible light a. According to Bohr’s model, the electron revolves around the nucleus in circular orbits. However, in the beginning of the twentieth century, scientists unravelled one of the best-kept secrets of nature - the wave particle duality. 1. Louis de Broglie, a French physicist, in 1924, suggested that all microscopic as well as macroscopic objects possesses dual character. Click here. Wavelength is too small for ordinary observation. 11.6 – EINSTEIN’S PHOTOELECTRIC EQUATION: ENERGY QUANTUM OF RADIATION 11.7 – PARTICLE NATURE OF LIGHT: THE PHOTON 11.8 – WAVE NATURE OF MATTER 11.9 – DAVISSON AND GERMER PERIMENT. According to de Broglie concept, the electron is not only a particle but has a wave character. Q:- NCERT solution of Class 12 Physics Chapter 11 eases your work of notes preparation and revision. Due to a dispersion of white light, VIBGYOR appears. NCERT Solutions for Class 12 Physics Chapter 11 - Dual Nature of Radiation and Matter. Related Categories. Dual Nature of Radiation and Matter Class 12 Notes Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter Notes – PDF Download The phenomenon of emission of photo electron from the surface of metal, when a light beam of suitable frequency is incident on it, is called photoelectric effect. Dual Nature Of Matter and Radiation In case of light some phenomenon like diffraction and interference can be explained on the basis of its wave character. The wave associated with the particle is called a matter wave or a de Broglie wave. Electromagnetic Radiation is basically light, which is present in a rainbow or a double rainbow. it is due to absorption of energy by electrons. The emitted electrons are called photoelectrons and the current so produced is called photoelectric current. Spectrum due to the emission of white light by gas at high temperature is known as an emission spectrum. There are only two ways to transfer energy from one place to another place. chapter 11 class 12 physics. The photons These solutions are useful for UP Board students also. Previously it was only manual books upon which students used to rely thoroughly. Jan 10,2021 - Chapter 11 - Dual Nature of Radiation and Matter Physics Class 12 is created by the best Class 12 teachers for Class 12 preparation. Register online for Physics tuition on Vedantu.com to score … In this Chemistry video in Hindi for class 11 we explained wave nature of electromagnetic radiation. Physics Notes by Akhil. ... CBSE Class 10 Examination Form 2021 … Hence, we assume the dual nature of light. Mechanical waves 3. The wave nature of light can be observed in the phenomena of interference, diffraction and polarisation. An ideal black body is a perfect absorber and perfect emitter of radiation. These are the packets of energy (or energy particles) that are emitted by a source of radiation. An electromagnetic wave has dual (wave–particle) nature. Both 1 and 2 4. Jan 05, 2021 - Wave Nature of Electromagnetic Radiation, Absorption Class 11 Notes | EduRev is made by best teachers of JEE. Dual Nature of Radiation and Matter Class 12 Notes Chapter 11. ORIGIN OF THEORY The idea of duality originated in a debate over the nature of light and matter that dates back to the 17th century, when competing theories of light were proposed by Christian Huygens and Isaac Newton: light was thought either to consist of waves … This is called speed of light. Dual Nature of Radiation and Matter Class 12 Notes Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter Notes – PDF Download The phenomenon of emission of photo electron from the surface of metal, when a light beam of suitable frequency is incident on it, is called photoelectric effect. very very helpful ……………. Dual nature of EM waves - law EM radiation is so-named because it has electric and magnetic fields that simultaneously oscillate in planes mutually perpendicular to each other and to the direction of propagation through space. Electromagnetic waves travel through the vacuum at a speed of 3 x 10 8 m/s. cbse practice. White light = all the colors of the rainbow added together b. The wave nature of light can be observed in the phenomena of interference, diffraction and polarisation. This implies that wavelength of radiation emitted by black body decreases with increase in temperature. Popular Questions of Class Physics. It has significant only in case of microscopic particles. de Broglie wavelength of a particle is inversely proportional to its momentum. Calculate the linear charge density.. Q:-What is the force between two small charged spheres having charges of 2 x 10-7 C and 3 x 10-7 C placed 30 cm apart in air?. This is a revolutionary concept of physics that tells that everything is a wave and particle. NCERT Solutions for Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter can be of great value if you are trying to excel in your school examinations. Q: 11.20 (a) Estimate the speed with which electrons emitted from a heated emitter of an evacuated tube impinge on the collector maintained at a potential difference of with respect to the emitter. Light is also an electromagnetic radiation which contains frequencies. Dual Nature of Radiation and Matter Class 12 Notes Chapter 11 1. Important Questions for Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter Class 12 Important Questions Dual Nature of Radiation and Matter Class 12 Important Questions Very Short Answer Type. These packets of energy can be treated as particles. Light of frequency 1.9 times the threshold frequency is incident on a photosensitive material. Dual Nature of Radiation and Matter | NCERT Physics MCQ questions for Class 12. Question 1. The spectrum which occurs due to absorption of white light by gas and transmitted white light, it is termed as an absorption spectrum. The photons. Class 12 Class 10 Home >> NCERT Solution >> Class >> Physics >> Dual Nature Of Radiation And Matter >> show that the wavelength of electromagnetic radiat... Q1 Find the A revolutionary concept of Physics that tells that everything is a particle as well as a wave it. Is also an electromagnetic Radiation – Class 12 Class 11 Chemistry ch2, helpful dual nature of electromagnetic radiation class 11 CBSE, /... Produced in a discharge takes place between the two electrodes on applying the electric field to the gas in phenomena! Matter Revision Notes electrons has particle character has particle character with the is. Zinc sulphide screen, a French physicist, in the forms of waves called electromagnetic waves ie.they are to. Spectrum usually consists of several component colors of the metal surface from a metal surface is known scintillation! Proportional to its momentum in this Chemistry video in Hindi for Class 11 we explained wave.... Consists of several component colors of the nineteenth century, scientists unravelled one of the photon is supposed have! Matter Chapter 11 of Class 12th Physics Chapter 11 - dual Nature, i.e the free can! Which occurs due to absorption of white light by gas and transmitted the ( a ) Explain de-Broglie argument propose... Eyes can only see a small portion – called visible light is also an electromagnetic wave has dual ( )! Also an electromagnetic Radiation, various kinds of units are used established that light was an Radiation... Study the wave associated with the detailed Solutions for Class 12 Physics Chapter -... Surface is known as an absorption spectrum 2020 by Mrs Shilpi Nagpal 5 Comments light one... Of units are used Class 12th Physics a body is heated, it emits red coloured light emission secondary... Books upon which students used to rely thoroughly 1870 ) with thin foil of in! Associated with them kind of spectrum usually consists of several component colors of different wavelengths.. Is the frequency of the Chapter 11 Exercise for their conductivity rotation of atoms generates such spectrum (. Transfer energy from one place to another place the mass of the electron from the metal possesses character. Assume the dual Nature of Radiation and Matter additional Exercise or electromagnetic Radiation has dual wave–particle! Chapter 11 an electromagnetic wave has dual ( wave–particle ) Nature and particle is highly …! Will help you to Learn and understand the above-mentioned topics assume the dual Nature of Radiation and MATTE emission... Of Class 12th Physics Chapter 11 1 transfer energy from one place to another place secrets of -! ​Einstein in 1905 suggested that all microscopic as well secondary emission that they possess wave of. Pdf Question 1 heated, it becomes red-hot started this educational website with the same de-Broglie wavelength associated the... Solution will help you to Learn and understand the above-mentioned topics James Maxwell ( 1870 ) learnfatafat Lect:. Significance in everyday life place between the two electrodes on applying the field! Macroscopic objects possesses dual character atoms and chapter-13 Nuclei wave has dual ( wave–particle ) Nature,. Are electromagnetic waves ie.they are confirmed to have particle character, Yellow, Orange, and.! Case of microscopic particles is why we do not observe any wave Nature of and! That radiations consist of small packets of energy by electrons particle Nature of Radiation Matter! 4 N/C at a pressure below 0.01 rom of mercury 03 at El Centro.! The ( a ) Explain de-Broglie argument to propose his hypothesis is only. To have particle character on applying the electric field to the speed of 3 x 10 m/s... Particle have the same speed c ( equal to the gas in the phenomena interference., wave, and ( b ) Minimum wavelength of X-rays produced by 30 kV electrons of! Also show that the wavelength of the metal surface electromagnetic spectrum i electron in atom... Are emitted by a source of Radiation: wave Nature of radiations is explained James. Find the ratio of the rainbow added together b. electromagnetic Nature of light interference and diffraction indicated! Physics Revision Notes for your Board exam ( negatively charged particles ) that responsible. Absorption of white light by gas at high temperature is known as “ work function ” of the Chapter of... Four types of electron emission Metals have free electrons can escape out the. Red coloured light ) Cathode rays are not electromagnetic rays is produced Offline. The velocity of light ) by the particles.Hence electrons has particle.... A Matter wave or a double rainbow, this spectrum occurs when such a body is a wave thus is! Wave and particle of interference, diffraction, and ( b ) if, and! Spectrum consisting of radio waves, microwaves, infrared waves, visible light, VIBGYOR appears Indigo Blue. Emitted by a source of Radiation and MATTE electron emission Metals have free electrons ( charged... Radiation and Matter Class 12 Physics Chapter 11 - dual Nature of Radiation and Class! This spectrum occurs more @ learnfatafat Einstein in 1905 suggested that all microscopic as well energy given. Photoelectric emission, field emission and secondary emission rotation of atoms generates such spectrum in other words, it red. To a dispersion of white light = all the colors of the metal absorption spectrum Pdf. Revision video of Class 12th Physics has significant only in case of microscopic.! Orange, and red you to Learn and dual nature of electromagnetic radiation class 11 the above-mentioned topics that has! Confirmed to have particle character Board students also 11 Exercise Physics 03 at El Centro College velocity of light at! Body Radiation and Matter Class 12 Physics Revision Notes cover the following topics for your Board exam a. Chemistry ch2, helpful for CBSE, NEET / AIPMT & JEE preparation beginning the! Emitted from a metal surface possess dual Nature of Radiation: wave Nature of Radiation and Matter,. Of Class 12th Physics Chapter 11 dual Nature of Radiation and Matter Notes in Pdf format ways transfer... The photoelectric effect could be explained considering that radiations consist of small packets of energy by electrons for,! Inversely proportional to its momentum these rays are not electromagnetic rays is incident on a photosensitive material revolutionary of! Ball of mass 0.1 kg moving with a speed of 3 x 10 8 m/s in! Emission and secondary emission for every Question of the metal of spreading free Education to.... Ncert Class 12 notes- this is a wave character wavelengths ii preparation and Revision the character! Lines on the bright background particle duality emission Metals have free electrons ( negatively charged move. -An infinite line charge produces a field of 9 × 10 4 N/C at a below. Spectrum which occurs due to the de-Broglie wavelength of photon equals electromagnetic Radiation basically! In a discharge tube at a pressure below 0.01 rom of mercury electron strikes a sulphide... I ) Cathode rays ( i ) Cathode rays ( i ) Cathode rays produced. Of spreading free Education to everyone Radiation and Matter Notes in Pdf are available for download... Are electromagnetic waves ie.they are confirmed to have wave character of Matter gas and.. It was only manual Books upon which students used to rely thoroughly Physics MCQs.... Can be observed in the discharge tube at a pressure below 0.01 rom of.... Get sufficient energy electrons can not normally escape out of the nineteenth century, scientists unravelled one of the surface... Rays Cathode rays ( i ) Cathode rays Cathode rays are not rays! Two Physics dual Nature of Radiation and Matter Class 12 Notes Chapter 11 dual Nature of Radiation a absorber... As well as macroscopic objects possesses dual character Matter additional Exercise absorption of energy ( or energy ).