endstream stream �z@� �0& /FontBBox [-568 -307 2000 1007] /Resources 50 0 R /Filter /FlateDecode /Length 68 >> endobj >> 7 0 obj Physics MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. stream /UserRestrictions 108 0 R >> endobj 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. �0D�=�\�����V�`q�� So uncertainty in its wavelength AR = 0 and hence uncertainty in its momentum Ap = 0 , as per de Broglie's equation. endobj endobj stream <> Dual Nature of Radiation and Matter. endobj endobj 40 0 obj /Kids [4 0 R 28 0 R 47 0 R 49 0 R 56 0 R 64 0 R 66 0 R] x�3R��2�35W(�*T0P�R0T(�Y@��� endobj 14 0 obj endobj NCERT Class 12 Physics Chapter 11 DUAL NATURE OF RADIATION AND MATTER Notes Free PDF. Dual Nature of Radiations: Depending on the experiment, we find that light behaves either as a wave or as a stream of particles. However, the free electrons cannot normally escape out of the metal surface. <> endstream Dual Nature of Radiation and Matter MCQ Questions with Answers Pdf Question 1. x�3R��2�35W(�*T0P�R0T(�Y@��� x������������� lPZ� �g E stream www.iceni.com) <> 12 0 obj <> �����c����� k�� <> 51 0 obj 1 0 obj >> endstream stream Further, the value of e / m was found to be independent of the nature of the material/metal used as the cathode (emitter), or the gas introduced in the discharge tube. stream 15 0 obj <> Audience. 17 0 obj Questions on Dual Nature of Matter is extremely important topic of Physics for students of 10+2 (Non – Medical, Medical ) . Johnston Stony suggested the name “Electron”. Click here. endstream x�3R��2�35W(�*T0P�R0T(�Y@��� These video classes have been designed to suit the curriculum of CBSE Class 12 students. 64 0 obj 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. /Type /Catalog �z@� �0& << >> x�3R��2�35W(�*T0P�R0T(�Y@��� <> <> �z@� �0&��52�342�s�C|�\�� �N> 8527521718; Online Support; Menu. Dual nature of radiation and matter NCERT SOLUTIONS pdf is provided here to help 12th standard students to prepare for the subject more efficiently. 11 0 obj The notes are based on CBSE Syllabus. NCERT Class 12 Physics Chapter 11 DUAL NATURE OF RADIATION AND MATTER Notes are one of the best pieces of study material that students can get as it will aid them to study better and reduce some stress that … endobj 69 0 obj 58 0 obj x�3R��2�35W(�*T0P�R0T(�Y@��� Einstein in 1905 suggested that light has dual nature, i.e. endobj <> To introduce, dual nature of radiation refers to the wave nature and particle nature of the electrons. /Resources 50 0 R /Filter /FlateDecode /Length 69 >> /Pages 2 1 R stream /Encoding /WinAnsiEncoding Dual Nature of Matter and Radiation. endstream endstream 34 0 obj Photon energy E hf or E nhf 2. 1 0 obj Light of frequency 1.9 times the threshold frequency is incident on a photosensitive material. 3 3. 22 0 obj 10 0 obj endobj These solutions are useful for UP Board students also. 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. Sign In. �z@� �0& endobj x�3R��2�35W(�*T0P�R0T(�Y@��� The wave nature of light can be observed in the phenomena of interference, diffraction and polarisation. �����cd����� {K 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… Since both are forms of energy so can be transformed into each other. endobj endobj Dual Nature of Radiation and Matter . stream stream Photoelectric effect, Hertz and Lenard's observations; Einstein's photoelectric equation; particle nature of light. �����c����� k�� Class 12 Physics NCERT Solutions Chapter 11 Dual Nature of Radiation and Matter stream 16 0 obj endstream <> stream A certain metallic surface is illuminated with monochromatic light of wavelength λ. 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. Lect 03: Wave Nature of Matter- De Broglie hypothesis. /Type /FontDescriptor <> <> Click here. stream �z@� �0& SUMMARY nhc 1. These rays are produced in a discharge tube at a pressure below 0.01 rom of mercury. endstream /User (Rakesh) <> Matter and radiations had a dual nature… <> Ch -- dual nature of radiation and matter. x�3R��2�35W(�*T0P�R0T(�Y@��� endobj 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. �z@� �0& x�3R��2�35W(�*T0P�R0T(�Y@��� x�3R��2�35W(�*T0P�R0T(�Y@��� stream stream Physics Notes Class 12 Chapter 11 Dual Nature of Radiation and Matter Cathode Rays Cathode rays are the stream of fast moving electrons. /Resources 50 0 R /Filter /FlateDecode /Length 68 >> /Contents 216 0 R <> Lect 01: Photoelectric Effect-01. Dual Nature of Matter and Radiations Download PDF of class 12 Physics notes of Chapter 11 Dual Nature of Matter and Radiations. Free PDF download of Physics Class 12 Chapter 11 - Dual Nature of Radiation and Matter Formulas Prepared by Expert Teachers at Vedantu.com. x�3R��2�35W(�*T0P�R0T(�Y@��� 41 0 obj x�3R��2�35W(�*T0P�R0T(�Y@��� 5 1 obj Dual nature of radiation. /MediaBox [0 0 595 842] endobj 8"�0B�!L�&B����+��_}'*~P���. 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. 62 0 obj stream endstream <> <> 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. endobj Download Offline Apps and Solutions based on updated NCERT Books for 2020-21. CBSE Class 12 Physics Dual Nature Of Matter Frequently Asked Questions. endstream �z@� �0& endobj endstream 57 0 obj endobj NEET Physics Dual Nature of Radiation and Matter questions & solutions with PDF and difficulty level /Resources 50 0 R /Filter /FlateDecode /Length 68 >> endobj << endobj x�3R��2�35W(�*T0P�R0T(�Y@��� In most cases, however, the wavelength is too small to have a practical impact on day-to-day activities. Students can solve NCERT Class 12 Physics Dual Nature of Radiation and Matter MCQs Pdf with Answers to know their preparation level. SYNOPSIS. x�3R��2�35W(�*T0P�R0T(�Y@��� x��y`��7~�3K��I&i���do��I���R�h��E*e�]i��T7��½��� 61 0 obj stream 2 1 obj Thus, radiations have dual nature. Whereas, some other phenomenon like Interference, diffraction, polarization etc. endstream endobj endobj �z@� �0&��52�342�s�C|�\�� ��o x�3R��2�35W(�*T0P�R0T(�Y@��� x�3R��2�35W(�*T0P�R0T(�Y@��� De-Broglie Hypothesis {Matter Waves} De-Broglie stated that as light possesses dual character and universe consists of matter and radiation only. As nature loves symmetry, thus matter should also possess dual nature both particle as well as a wave. The stopping potential for photoelectric current for this light is 3V o.If the same surface is illuminated with light of wavelength 2λ. Class XII Chapter 11 - Dual Nature Of Radiation And Matter Physics Website: www.vidhyarjan.com Email: contact@vidhyarjan.com Mobile: 9999 249717 −1. endobj <> view pdf. �����c����� kl� wave nature as well as particle nature. 18 0 obj <> �z@� �0& 20 0 obj 37 0 obj Easy to print and read. 4 0 obj <> i.e. <> �z@� �0& Dual Nature of Matter and Radiation PDF Notes, Important Questions and Synopsis . �z@� �0& 54 0 obj View Test #11 Dual radiation of matter.pdf from PHYSICS 1 at Aakash Teacher Training College,hisar. <> Dual-Nature-of-Radiation-and-Matter.pdf - Google Drive ... Sign in �z@� �0&��52�342�s�C| \�� �^h x�3R��2�35W(�*T0P�R0T(�Y@��� 17 Dual Nature of Matter: As there is complete equivalence between matter (mass) and radiation (energy) and the principle of symmetry is always obeyed, de Broglie suggested that moving particles like protons, neutrons, electrons, etc., should be associated with waves known as de Broglie waves and their 29 0 obj • There are four types of electron emission, namely, Thermionic Emission, Photoelectric Emission, Field Emission and secondary emission. /Resources 50 0 R /Filter /FlateDecode /Length 68 >> What is Photoelectric effect? >> /Type /Page x�3R��2�35W(�*T0P�R0T(�Y@��� /Length 51244 /Parent 2 1 R Class 12 NCERT/CBSE board notes for Dual Nature Of Matter And Radiation. Matter waves-wave nature of … 53 0 obj endobj <> stream endstream Chapter 11 (Dual Nature of Radiation and Matter) Unsolved.pdf. endstream 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. /CreationDate (D:20160824183349) Important Topics: Important topics from Dual Nature of Radiation and Matter for boards are Planck's idea, Hertz and Lenard's Experiment, Threshold Frequency and Wave Function. stream endobj stream <> 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”. Speculation that matter may not be continuous, existed in many places and cultur es. Thus the electron was discovered. stream Note : A harmonic wave has a definite wavelength. endobj �z@� �0& 8 0 obj Here are complete Dual Nature of Radiation and Matter important notes and summary. /Producer (Iceni Technology. /CropBox [0 0 595 842] endstream endobj �����ch����� {f Mamentum of Photon = p = 49 0 obj DUAL NATURE OF MATTER AND RADIATION Introdcution Light exhibit dual nature - wave nature and particle nature. /Resources 50 0 R /Filter /FlateDecode /Length 68 >> �����c����� ke� stream /Resources 50 0 R /Filter /FlateDecode /Length 69 >> <> /Resources <> /Para <<>> The presently accepted value of e / m is 1.76 × 10 11 C/kg. 32 0 obj /Length1 92352 x�3R��2�35W(�*T0P�R0T(�Y@��� Physicswallah Typed Notes. Lect 03: Wave Nature of Matter- De Broglie hypothesis. z�+.W�E�R�*Wq�&�3��p�������7�9s�̒3��y>�9� �hIaȰ�#������$��'�0��+if)!P@�y����ğr>���C��^�Z?톿=��w'��O��h�g�!�{ٲ|����um�턼b��O���_p����0o�ξ��p��[��9�'GH�&�Ϲa��z-%䏗�Q�q� ד�]*������9s������xNE������=�}�@�_ѧ`�`=�����Ėi%S�8Jy�c9ʰ�,nn"�G-C��8�HD�_��Ī �r�!�@W�a�W��G�%��ZJa�����;*. �z@� �0&��52�342�s�C|�\�� �lj endobj <> x�3R��2�35W(�*T0P�R0T(�Y@��� endobj 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 … The notes are based on CBSE Syllabus. endobj �����cd����� {R x�3R��2�35W(�*T0P�R0T(�Y@��� The history of the photoelectric effect dates back to 1887, when this phenomenon was accidentally discovered by Heinrich Hertz. endstream endobj �z@� �0&��52�342�s�C|�\�� ��n endstream endobj �����ch����� {{ NEET help on Whatsapp Chat. <> x�3R��2�35W(�*T0P�R0T(�Y@��� 60 0 obj <> stream %PDF-1.5 endobj 26 0 obj 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. The electrons thus emitted are called “photo electrons”. Speculation that matter may not be continuous, existed in many places and cultur es. 44 0 obj 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. <> /LastChar 255 <> endobj endstream x�3R��2�35W(�*T0P�R0T(�Y@��� endobj endstream x�3R��2�35W(�*T0P�R0T(�Y@��� ��+�o��0�,�7A*J��A ��E�h����L�YK��:N�AsbVu�����6 2. 33 0 obj 55 0 obj 2 2. Dual Nature of matter: There are some phenomenon involving light like photoelectric effect, Compton scattering etc which can be explained only on the particle nature of light. /Length 28 endobj 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 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. >> endstream x�3R��2�35W(�*T0P�R0T(�Y@��� endobj <> Reasoning that radiation and matter should be symmetrical in nature, Louis Victor de Broglie attributed a wave-like character to matter (material particles). endstream 24 0 obj 387 Dual Nature of Radiation and Matter particles. Short Answer Questions-II. �z@� �0&��52�342�s�C|L\�� �9; stream Hello,Myself Lakhan Keshwani "Empowering Youth through Genius Learning".Need HELP or CONFUSED ? endstream However, the free electrons cannot normally escape out of the metal surface. Click here. �z@� �0& x�5�K stream Short Answer Questions-I. /Resources 50 0 R /Filter /FlateDecode /Length 68 >> 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&��52�342�s�C|�\�� �G= /Descent -216 x�3R��2�35W(�*T0P�R0T(�Y@��� 36 0 obj J.J. Thomson and Sir William Crookes studied the discharge of electricity through gases. 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. /Count 7 /Ascent 693 The wave associated with the particle is called a matter wave or a de Broglie wave. endobj �z@� �0&��52�342�s�C|�\�� �2: Questions on Dual Nature of Matter is extremely important topic of Physics for students of 10+2 (Non – Medical, Medical ) . Class 12 NCERT/CBSE board notes for Dual Nature Of Matter And Radiation. << /Flags 32 endobj Bottom of Pyramid - Test # 9- Dual Nature of Matter & Contact Number: 9667591930 / For 1 marker and MCQ for class 12 boards, conceptual questions from these topics as well as threshold frequency and wave function can be asked. 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. view pdf . <> 5 0 obj 4 0 obj x�3R��2�35W(�*T0P�R0T(�Y@��� endstream <> /ICNAppVersion (3.05) In this video tutorial, we will learn the dual nature of light and cover topics such as photoelectric effect, Hellwach and Lenard's experiment, Einstein's equation of PE current, concept of photon, and de-Broglie's hypothesis. Thus light exhibit wave - particle duality. Mamentum of Photon = p = endobj Xam Idea Class 12 Physics Solutions is a complete exam preparation textbook for senior secondary classes. 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). 43 0 obj NCERT Class 12 Physics Chapter 11 DUAL NATURE OF RADIATION AND MATTER Notes PDF. endstream <> 42 0 obj view pdf. endobj Chapter-11 Dual Nature of radiation and matter Davisson-Germer experiment CBSE Class 12 Physics Syllabus Deleted Portion for 2020-21. endobj 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. Towards the end of the nineteenth century, Maxwell's equations established that light was an electromagnetic wave. stream <> /Subtype /TrueType 3 0 obj endobj endstream endstream Notes of Chapter 11 Dual Nature of Matter and Radiations contains all the topic as per the syllabus of NCERT. >> �����c����� k�� SIMIL RAHMAN MSc,Ph.D,B.Ed, D.E.E.I ,SET,MA Engineering. stream �z@� �0& View Dual Nature of Matter and Radiation.pdf from PHYSICS 03 at El Centro College. �z@� �0&��52�342�s�C|\�� �$8 Free PDF Download of CBSE Physics Multiple Choice Questions for Class 12 with Answers Chapter 11 Dual Nature of Radiation and Matter. �z@� �0&��52�342�s�C|,\�� �\@ /Resources 50 0 R /Filter /FlateDecode /Length 68 >> 56 0 obj 21 0 obj x�3R��2�35W(�*T0P�R0T(�Y@��� However, in the beginning of the twentieth century, scientists unravelled one of the best-kept secrets of nature - the wave particle duality. 46 0 obj Dual Nature of Matter and Radiation is one of the most important chapters from modern physics while preparing for all competitive exam because it helps you to understand the dual nature of matter. endobj endstream stream The notes are prepared by best faculties across India. 66 0 obj Click here. }�qrP��6B�!L�&B!���z_����?A�/��'���� Explain the laws of Photoelectric effect. endobj /Resources 50 0 R /Filter /FlateDecode /Length 69 >> Lect 02: Photoelectric Effect-02. 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. stream Thus, radiations have dual nature. %PDF-1.4 endobj endstream <> x�3R��2�35W(�*T0P�R0T(�Y@��� endobj stream stream 9 0 obj 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. /ProcSet [/PDF /Text] /XObject <> >> endstream When light of suitable frequency is incident on certain metals free electrons are emitted from the metal. stream �z@� �0&��52�342�s�C|,\�� �U? endobj endobj SUMMARY nhc 1. Each topic is explained in … Free PDF download of Physics Class 12 Chapter 11 - Dual Nature of Radiation and Matter Formulas Prepared by Expert Teachers at Vedantu.com. /ModDate (D:20160824183404) <> stream The nature of the experiment determines whether a wave or a particle description is best suited for understanding the experimental result. 65 0 obj <> 9 0 obj << x�3R��2�35W(�*T0P�R0T(�Y@��� View Dual Nature of Matter and Radiation.pdf from PHYSICS 03 at El Centro College. endobj �z@� �0& This summarizes most important formulae, concepts, in form of notes of Dual Nature of Radiation and Matter which you can read for JEE, NEET preparation.The important notes of Physics for Dual Nature of Radiation and Matter pdf download are available here for free. �����c����� k�� <> <> 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. 67 0 obj �����ch����� {� /Infix <> /ShowGrid false /ShowGuides false /SnapToGrid false �����c����� k�� endstream �z@� �0& <> Very Short Answer Questions. wave and particle nature. �����ch����� {Q <> /Type /Pages Chapter 11 (Dual Nature of Radiation and Matter) Unsolved.pdf. /Resources 50 0 R /Filter /FlateDecode /Length 69 >> /Resources 50 0 R /Filter /FlateDecode /Length 68 >> Click here. stream endobj NCERT Chapter 11. stream Download NEET UG Physics Dual Nature of Matter MCQs in pdf, Physics chapter wise Multiple Choice Questions free 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 […] Question 1. Having said that, during class 12, Physics Chapter 11 DUAL NATURE OF RADIATION AND MATTER is an essential subject as well as a difficult one with many problems diagrams and many concepts. /Pages (1) /FirstChar 0 Photon energy E hf or E nhf 2. /Resources 48 0 R /Filter /FlateDecode /Length 112 >> endstream endobj Dual Nature of Radiation and Matter Class 12 Physics MCQs Pdf. /Creator (\(Foxit Advanced PDF Editor\)) /SMask 74 0 R /Length 2141 >> /FontFile2 9 0 R 73 0 obj stream x�3R��2�35W(�*T0P�R0T(�Y@��� AW+RfB!���Da"�0BX�K+�]y_-��~�SϿ�|�_H��e[��%B!���Da"�0B�I�&~ �'��oj�h-OS�3!���Da"�0B�!,�+S|��J0_������ t�N�e&�0B�!L�&B!���Ŕf�a_y��ܪ�n'�X���'B!���Da"��^N3����~j��{!4;�S�aW�j��La"�0B�!L�&B;�%��7_�8��������t_-�X,Q �!���Da"�0BX�@O�5ۉaꎲڢ����3��6��3�@Op�Da"�0B�!L����+�ޠ�5��. �����c����� kz� x�3R��2�35W(�*T0P�R0T(�Y@��� endobj 31 0 obj /Filter /FlateDecode �����ch����� {t On the other hand, quantum theory of e.m. radiations successfully explained the photoelectric effect, Compton effect, black body radiations, X- ray spectra, etc. x�3R��2�35W(�*T0P�R0T(�Y@��� Moving particle like electrons, protons etc can exhibit wave properties. /Margins [0 0 0 0] x�3R��2�35W(�*T0P�R0T(�Y@��� In this article, we are going to give you Important topics and notes for chapter 11 Dual nature of radiation and matter from class 12 physics. �z@� �0& �ʩp#%��vz���`��� )I In 1924, Lewis de-Broglie proposed that matter has dual characteristic just like radiation. So that you can rely on these Class 12 Physics NCERT Solutions for Chapter 11 PDF at your exam preparation. /XObject <> DUAL NATURE OF RADIATION AND MATTER Important Points: 1. Board notes offered by thinkIIT is helpful in securing good marks in class 12. endobj << 1 Education World is providing comprehensive, expert and high level coaching for +1 and +2(Non-medical,Medical).Highly qualified and experienced faculty of each subject of Physics, Chemistry, Maths, Biology is available in Education World. �����c����� ks� 47 0 obj Dual Nature of Radiation and Matter: Wave theory of electromagnetic radiations explained the phenomenon of interference, diffraction and polarization. 4 4. CBSE is the big educational board in India and the NCERT conducts the syllabus for the same. stream stream /Filter /FlateDecode endstream 27 0 obj << �����ch����� {X endstream Board notes offered by thinkIIT is helpful in securing good marks in class 12. �z@� �0& the stopping potential is V o.The threshold wavelength for this surface for the photoelectric effect is: /Type /Font endstream �z@� �0& endobj Dual Nature of Radiation and Matter CBSE CLASS XII NOTES Dr . <> x�3R��2�35W(�*T0P�R0T(�Y@��� x�3R��2�35W(�*T0P�R0T(�Y@��� endobj 38 0 obj 7 0 obj endstream <> Number of photon emitted in one second N 3. 28 0 obj The notes are prepared by best faculties across India. /Resources 50 0 R /Filter /FlateDecode /Length 69 >> 63 0 obj endstream endobj <> 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. 19 0 obj endobj stream Matter can also exhibit dual nature. Click here. 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