So uncertainty in its wavelength AR = 0 and hence uncertainty in its momentum Ap = 0 , as per de Broglie's equation. Photon energy E hf or E nhf 2. x�3R��2�35W(�*T0P�R0T(�Y@��� endstream Dual nature of Radiation and Matter Photoelectric Effect The “Photoelectric effect” is a phenomenon of the emission of electrons by a metal surface after absorbing “light energy”. /Filter /FlateDecode 24 0 obj 12 0 obj %PDF-1.5 Note : A harmonic wave has a definite wavelength. <> �z@� �0& Click here. x�3R��2�35W(�*T0P�R0T(�Y@��� 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. 52 0 obj �z@� �0&��52�342�s�C| \�� �^h Notes 301 Dual Nature of Radiation and Matter PHYSICS MODULE - 7 Atoms and Nuclei z state the laws of photoelectric emission; z interpret the graphs between frequency of radiation and retarding potential; z write deBroglie wavelength of matter waves associated with a particle of momentum p ; and z describe the experimental arrangement for the verification of matter waves. endobj x�3R��2�35W(�*T0P�R0T(�Y@��� <> <> �z@� �0& So, for the matter wave associated with an electron the wavelength λ is physically significant and its frequency v, is not so likewise, the phase speed v λ, is also not physically significant. Dual Nature of Radiation and Matter. endstream stream Chapter 13 Nuclei Radioactivity, alpha, beta and gamma particles/rays and their properties; radioactive decay law, half life and mean life 13 0 obj endstream >> view pdf. The electrons thus emitted are called “photo electrons”. Dual nature of radiation and matter NCERT SOLUTIONS pdf is provided here to help 12th standard students to prepare for the subject more efficiently. <> An electromagnetic wave has dual (wave–particle) nature. On the other hand, quantum theory of e.m. radiations successfully explained the photoelectric effect, Compton effect, black body radiations, X- ray spectra, etc. <> Dual-Nature-of-Radiation-and-Matter.pdf - Google Drive ... Sign in Whereas, some other phenomenon like Interference, diffraction, polarization etc. endobj 56 0 obj endstream endstream /Resources 50 0 R /Filter /FlateDecode /Length 69 >> Light of frequency 1.9 times the threshold frequency is incident on a photosensitive material. wave nature as well as particle nature. <> 2 1 obj <> 11 0 obj /Creator (\(Foxit Advanced PDF Editor\)) �z@� �0&��52�342�s�C|�\�� �2: 3 0 obj <> <> endstream Photon energy E hf or E nhf 2. Towards the end of the nineteenth century, Maxwell's equations established that light was an electromagnetic wave. �z@� �0&��52�342�s�C|M\�� �zl The notes are prepared by best faculties across India. Dual Nature of Radiation and Matter Emission of electrons: We know that metals have free electrons (negatively charged particles) that are responsible for their conductivity. stream 1 1. stream endobj stream 4 4. endobj /Resources 50 0 R /Filter /FlateDecode /Length 68 >> /Resources 50 0 R /Filter /FlateDecode /Length 68 >> Chapter 11 (Dual Nature of Radiation and Matter) Unsolved.pdf. <> �����ch����� {Q /StemV 87 /Resources 50 0 R /Filter /FlateDecode /Length 68 >> stream view pdf. The wave associated with the particle is called a matter wave or a de Broglie wave. 6 0 obj 19 0 obj x�3R��2�35W(�*T0P�R0T(�Y@��� stream �z@� �0&��52�342�s�C|�\�� �lj x�3R��2�35W(�*T0P�R0T(�Y@��� endobj JEE NEET Physics Question Bank for Dual Nature of Matter and Radiation: Candidates willing to take Joint Entrance Examination (JEE) and National Eligibility cum Entrance Test (NEET) can check the JEE NEET Physics Question Bank for Dual Nature of Matter and Radiation given on this page.The questions are objective in nature and resemble the difficulty level and pattern of the actual … 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. In most cases, however, the wavelength is too small to have a practical impact on day-to-day activities. /Pages (1) endstream <> /ModDate (D:20160824183521) Matter can also exhibit dual nature. <> endstream endobj endobj stream endobj <> }�qrP��6B�!L�&B!���z_����?A�/��'���� 49 0 obj x�3R��2�35W(�*T0P�R0T(�Y@��� x�3R��2�35W(�*T0P�R0T(�Y@��� <> endobj • There are four types of electron emission, namely, Thermionic Emission, Photoelectric Emission, Field Emission and secondary emission. stream 58 0 obj /Type /Page endstream i.e. 65 0 obj endobj SUMMARY nhc 1. Since both are forms of energy so can be transformed into each other. /Resources 50 0 R /Filter /FlateDecode /Length 69 >> >> 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. wave and particle nature. 10 0 obj <> stream 54 0 obj 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 […] stream Dual Nature of Radiation and Matter: Wave theory of electromagnetic radiations explained the phenomenon of interference, diffraction and polarization. x�3R��2�35W(�*T0P�R0T(�Y@��� 20 0 obj <> 64 0 obj /Resources 50 0 R /Filter /FlateDecode /Length 68 >> In 1924, Lewis de-Broglie proposed that matter has dual characteristic just like radiation. 30 0 obj 8"�0B�!L�&B����+��_}'*~P���. 7 0 obj 8 0 obj These video classes have been designed to suit the curriculum of CBSE Class 12 students. endobj x�3R��2�35W(�*T0P�R0T(�Y@��� /Length 28 Matter waves are a central part of the theory of quantum mechanics, being an example of wave–particle duality.All matter exhibits wave-like behavior.For example, a beam of electrons can be diffracted just like a beam of light or a water wave. /Resources 50 0 R /Filter /FlateDecode /Length 69 >> endobj <> CBSE Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter Notes in PDF are available for free download in myCBSEguide mobile app. �z@� �0& endobj 1 0 obj /LastChar 255 x�3R��2�35W(�*T0P�R0T(�Y@��� Physicswallah Assignment. Moreover, in the NCERT Solutions for Class 12 Physics Chapter 11 consist of all the study material or guides that students require to score decent marks in exams. 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. Photoelectric effect was discovered by Hertz in 1887. Physics MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. endstream 43 0 obj Thus the electron was discovered. endobj As nature loves symmetry, thus matter should also possess dual nature both particle as well as a wave. <> << endstream /User (Rakesh) 26 0 obj endobj /ICNAppPlatform (Windows) Class 12 Physics NCERT Solutions Chapter 11 Dual Nature of Radiation and Matter Class 12 NCERT/CBSE board notes for Dual Nature Of Matter And Radiation. x����q�H �a�qRI�JbW�����8�$�ķc��4��di�[�y~x.�f���뗗�+ ����!���Da"�0B�!L�&B!���Da"�0B�!L�&B!���Da"�0B�!L�&B!���Da"�0B�u�S�]__�����//�����x���}�|X��L�s� !L�&B!���Da�%���F6`�}U�.~�}ո�"+7���� !L�&B!���Da�,Q���w˽(�oU����OV|�e&�0B�!L�&B!��¬~��տ>+vP|M�^-G� !L�&B!���Da�(>��J-7�%KcfB!���Da"�0BX/K� 8��f���>_-�2B�!L�&B!���Kq�(��~ѲAv*=Vq�(����Da"�0B�!��ũ[�P�j�q���K�La"�0B�!L�&B��@O�I�~π�GO��D1�KX�0B�!L�&B!���z9�S����*�ٲA�a�/2���)h�cfB!���Da"�0B�!�|ve��*�}5��j�}���Jo���N�O�&B!���Da�´����rU�־���-wFkvd�MFؐ��Da"�0B�!L���9볧�s1`ʩ�E?u��(�B��Da"�0B�!���(���}��5����S��İ��% Matter waves-wave nature of … Class XII Chapter 11 - Dual Nature Of Radiation And Matter Physics Website: www.vidhyarjan.com Email: contact@vidhyarjan.com Mobile: 9999 249717 −1. endobj stream Dual Nature Of Matter And Radiation; Xam Idea Class 12 Physics Solutions PDF 11. stream endobj �����cd����� {R stream endobj 15 0 obj His concept about the dual nature of matter was based on the following observations:-(a) The whole universe is composed of matter and electromagnetic radiations. <> �����c����� k�� �����c����� k�� stream <> The stopping potential for photoelectric current for this light is 3V o.If the same surface is illuminated with light of wavelength 2λ. stream /Type /Pages <> <> endobj endobj 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. 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 Board exams. stream >> stream >> 6 0 obj endstream endobj stream 8 0 obj endstream endstream <> 59 0 obj J.J. Thomson and Sir William Crookes studied the discharge of electricity through gases. �z@� �0&��52�342�s�C|,\�� �\@ Photoelectric effect, Hertz and Lenard's observations; Einstein's photoelectric equation; particle nature of light. �z@� �0&��52�342�s�C|�\�� �N> <> 36 0 obj �����c����� k�� Free PDF download of Important Questions with Answers for CBSE Class 12 Physics Chapter 11 - Dual Nature of Radiation and Matter 3 Marks Questions prepared by expert Physics teachers from latest edition of CBSE(NCERT) books On CoolGyan.Org to score more marks in CBSE board examination. <> Dual Nature of Matter and Radiations Download PDF of class 12 Physics notes of Chapter 11 Dual Nature of Matter and Radiations. Ch -- dual nature of radiation and matter. �z@� �0& Sign In. SIMIL RAHMAN MSc,Ph.D,B.Ed, D.E.E.I ,SET,MA Engineering. /FontFile2 9 0 R endstream /Parent 2 1 R 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. <> �z@� �0& �����ch����� {{ Subject- Physics chapter- Dual Nature of Radiation and Matter Read full ncert pdf online with notes & video guides. <> x�3R��2�35W(�*T0P�R0T(�Y@��� 61 0 obj x�3R��2�35W(�*T0P�R0T(�Y@��� 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. /ICNAppName (Foxit Advanced PDF Editor) endobj endstream endobj x�5�K While dual nature of matter means that the matter shows duel properties of particle and wave nature. �z@� �0&��52�342�s�C|�\�� ��n The presently accepted value of e / m is 1.76 × 10 11 C/kg. NCERT Class 12 Physics Chapter 11 DUAL NATURE OF RADIATION AND MATTER Notes PDF. Dual Nature of Radiation and Matter Emission of electrons: We know that metals have free electrons (negatively charged particles) that are responsible for their conductivity. 68 0 obj The history of the photoelectric effect dates back to 1887, when this phenomenon was accidentally discovered by Heinrich Hertz. Number of photon emitted in one second N 3. �����c����� k�� endstream stream Very Short Answer Questions. They were found to travel with speeds ranging from about 0.1 to 0.2 times the speed of light (3 ×10 8 m/s). endobj /Kids [4 0 R 28 0 R 47 0 R 49 0 R 56 0 R 64 0 R 66 0 R] What is Photoelectric effect? <> �����ch����� {m <> endobj x�3R��2�35W(�*T0P�R0T(�Y@��� Free PDF download of Physics Class 12 Chapter 11 - Dual Nature of Radiation and Matter Formulas Prepared by Expert Teachers at Vedantu.com. stream endobj 3 3. 4 0 obj View Dual Nature of Matter and Radiation.pdf from PHYSICS 03 at El Centro College. Each topic is explained in … <> 7 0 obj endobj • There are four types of electron emission, namely, Thermionic Emission, Photoelectric Emission, Field Emission and secondary emission. <> endobj Xam Idea Class 12 Physics Solutions is a complete exam preparation textbook for senior secondary classes. stream /FontName /FNTSBS+TimesNewRomanPSMT <> Click here. endobj /Margins [0 0 0 0] Lect 03: Wave Nature of Matter- De Broglie hypothesis. The notes are prepared by best faculties across India. /Encoding /WinAnsiEncoding Click here. The notes are based on CBSE Syllabus. endobj J.J. Thomson called them “streams of negative corpuscles”. 41 0 obj /XObject <> /Filter /FlateDecode 8527521718; Online Support; Menu. <> �z@� �0& Bottom of Pyramid - Test # 9- Dual Nature of Matter & Contact Number: 9667591930 / endobj 46 0 obj endobj �z@� �0& /Pages 2 1 R �0D�=�\�����V�`q�� NCERT Class 12 Physics Dual Nature of Radiation and Matter. NCERT Class 12 Physics Chapter 11 DUAL NATURE OF RADIATION AND MATTER Notes Free PDF. /MediaBox [0 0 595 842] endobj 67 0 obj 14 0 obj stream x�3R��2�35W(�*T0P�R0T(�Y@��� x�3R��2�35W(�*T0P�R0T(�Y@��� 33 0 obj endstream 5 0 obj Whenever radiation interacts with the matter, it displays particle like properties in contrast to the wavelike properties (interference and diffraction), which it exhibits when it propagates. <> x�3R��2�35W(�*T0P�R0T(�Y@��� 47 0 obj <> Speculation that matter may not be continuous, existed in many places and cultur es. << endobj x������������� lPZ� �g E Matter can also exhibit dual nature. <> To introduce, dual nature of radiation refers to the wave nature and particle nature of the electrons. view pdf . /ItalicAngle 0 NCERT Solutions are prepared by expert teachers in such a way that it helps students understand the concepts of the chapter in an interactive manner. endobj 44 0 obj If an electron attempts to come out of the metal, the metal surface acquires a positive charge and pulls the electron back to the metal. Easy to print and read. <> endstream <> stream x�3R��2�35W(�*T0P�R0T(�Y@��� endobj x�3R��2�35W(�*T0P�R0T(�Y@��� endstream x�3R��2�35W(�*T0P�R0T(�Y@��� �����ch����� {f view pdf. endstream 70 0 obj Short Answer Questions-II. Thus, radiations have dual nature. x�3R��2�35W(�*T0P�R0T(�Y@��� stream <> stream Class XII Chapter 11 - Dual Nature Of Radiation And Matter Physics −10 (b) Also find the de Broglie wavelength of a neutron, in thermal equilibrium with matter, electromagnetic radiation is equal to the de Broglie wavelength of the photon. 34 0 obj /BaseFont /FNTSBS+TimesNewRomanPSMT /Resources 50 0 R /Filter /FlateDecode /Length 68 >> 9 0 obj endobj �z@� �0& /ICNAppVersion (3.05) 39 0 obj x�3R��2�35W(�*T0P�R0T(�Y@��� endstream �z@� �0&��52�342�s�C|�\�� �sk This process is called photoelectric effect. endstream /Infix <> /ShowGrid false /ShowGuides false /SnapToGrid false Einstein in 1905 suggested that light has dual nature, i.e. endstream Number of photon emitted in one second N 3. endobj <> �����ch����� {t Audience. 27 0 obj The nature of the experiment determines whether a wave or a particle description is best suited for understanding the experimental result. <> endstream �z@� �0& 45 0 obj stream Radiation has dual nature, wave, and particle. Download NEET UG Physics Dual Nature of Matter MCQs in pdf, Physics chapter wise Multiple Choice Questions free Click here. x�3R��2�35W(�*T0P�R0T(�Y@��� 31 0 obj If an electron attempts to come out of the metal, the metal surface acquires a positive charge /Resources 50 0 R /Filter /FlateDecode /Length 69 >> the stopping potential is V o.The threshold wavelength for this surface for the photoelectric effect is: Question 1. �z@� �0& endstream And with the help of either wave nature or particle nature, we can …