(As Approved in the BOS meeting held on 26 March 2016 for )

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1 SYLLABUS FOR III B.Sc., PHYSICS (w.e.f ) SEMESTER V - ADVANCED ELECTIVE [1] MODERN PHYSICS AND QUANTUM MECHANICS (As Approved in the BOS meeting held on 26 March 2016 for ) Unit I 25 hrs Atomic Spectra Introduction Drawbacks of Bohr s atomic model - Somerfield s elliptical orbits Relativistic correction (no derivation). Stern & Gerlach experiment Vector atom model and quantum numbers associated with it. L-S and j-j coupling schemes. Spectral terms, selection rules, intensity rules. Hydrogen spectrum, Fine structure and hyper fine structure Spectra of alkali atoms, doublet fine structure. Alkaline earth spectra, singlet and triplet fine structure. Zeeman Effect, Paschen-Back Effect and Stark Effect (basic idea). Spin-Orbit interaction-relativistic variation of mass-contribution to fine and hyper fine structure-qualitative treatment only Unit - II Molecular Spectroscopy: Types of molecular spectra, pure rotational energies and spectrum of diatomic molecule, determination of inter nuclear distance. Vibrational energies and spectrum of diatomic molecule. Raman Effect, Classical theory of Raman Effect. Experimental arrangement for Raman Effect and its applications. Rotational spectra of poly atomic molecules [Theory only]. Unit III: Quantum Mechanics 25Hrs Inadequacy of classical Physics: (Discussion only) Photo Electric effect, Eisenstein Photo Electric equation, Experimental verification. Compton s effect (quantitative) experimental verification. Stability of an atom - Matter Waves: de Broglie s hypothesis wavelength of matter waves, properties of matter waves. Phase and group velocities. Davisson and Germer experiment. Double slit experiment. Standing de Broglie waves of electron in Bohr orbits. Uncertainty Principle: Heisenberg s uncertainty principle for position and momentum (x and px), Energy and time (E and t). Gamma ray microscope. Diffraction by a single slit. Position of electron in a Bohr orbit. Particle in a box. Complementary principle of Bohr. Unit -IV: Schrodinger Wave Equation: Schrodinger time independent and time dependent wave equations. Wave function properties Significance. Basic postulates of quantum mechanics. Operators, Eigen functions and Eigen values, expectation values. Application of Schrodinger wave equation to particle in one and three dimensional boxes, potential step and potential barrier. Note: Problems should be solved at the end of every chapter of all units. 1

2 Reference Books: 1. Modern Physics by G.Aruldhas & P.Rajagopal, Eastern Economy Edition 2. Concepts of Modern Physics by Arthur Beiser, Tata McGraw Hill Edition. 3. Modern Physics by R.Murugesan and KiruthigaSiva Prasanth. S.Chand &Co. 4. Molecular Structure & Spectroscopy by G.Aruldhas.Prentice Hall of India New Delhi. 5. Spectroscopy- Atomic and Molecular by Gurudeep R Chatwal and Shyam Anand-Himalaya Publishing House. 6. Third Year Physics Telugu Academy. Reference Books: 1.University Physics with Modern Physics by Young & Freedman A.Lewis Ford.Low Price Edition (Eleventh Edition) 2. Quantum Physics by Eyvind H.Wichman. Volume 4. The McGraw Hill Companies. 3. Quantum Mechanics by Mahesh C Jain Eastern Economy Edition Prentice Hall of India. 2

3 ADDITIONAL INPUTS CLASS :III B.Sc., SEMESTER :V PAPER : ADVANCED ELECTIVE - 1 TITLE OF THE PAPER : MODERN PHYSICS AND QUANTUM MECHANICS TOPICS IN THE UNIVERSITY SYLLABUS 1. Atomic Physics 2. Molecular Physics ADDITIONAL TOPICS INCLUDED UNDER AUTONOMOUS SET UP 1. Photo Electric Effect 2. Microwave Spectrum of Diatomic molecules.. 3

4 EVALUATION SCHEME & MODEL OF SEMESTER END EXAMINATION QUESTION PAPER [THEORY] ADVANCED ELECTIVE -1 (MODERN PHYSICS AND QUANTUM MECHANICS) (As Approved in the BOS meeting held on 26 March 2016 for ) SCHEME OF EVALUATION Examination No. of Marks Remarks Semester end examination 75 Model of examination pattern furnished below Internal examination 25 Written examination: 10 Viva-voce : 5 Seminar:5 Assignement:5 MODEL OF SEMESTER END EXAMINATION QUESTION PAPER [THEORY] SECTION DESCRIPTION MARKS A Essay type questions- Four questions to be asked with internal choice in each question (A or B) from each unit. Student has to answer 4x10 = 40 four questions choosing one (A or B) from each question. Each question carries 10 marks. Short answer type questions - Eight questions are to be asked 5x3 = 15 B (4 theory + 4 numerical). Student has to answer any five questions. Each question carries 3 marks C Very short answer type questions - Ten questions are to be asked covering the entire syllabus. 10x2 =20 Student has to answer all ten questions. Each question carries 2 Marks TOTAL MARKS 75 4

5 SEMESTER V ADVANCED ELECTIVE -1 MODERN PHYSICS AND QUANTUM MECHANICS SEM END EXAM BLUE PRINT 1 (a) or (b) Unit I 2 (a) or (b) Unit II 3. (a) or (b) Unit III 4. (a) or (b) Unit IV SECTION A SECTION B 4 x 10 = 40 M 5 x 3 = 15 M THEORETICAL QUESTIONS 5. Unit I 6. Unit II 7. Unit III 8. Unit IV SECTION C Unit I Unit - II Unit - III 9. Problem Unit I 10. Problem Unit II 11. Problem Unit III 12. Problem Unit IV x 2 = 20 M Unit - IV 5

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GOVERNMENT COLLEGE (A) : RAJAMAHENDRAVARAM DEPARTMENT OF PHYSICS SYLLABUS FOR I

GOVERNMENT COLLEGE (A) : RAJAMAHENDRAVARAM SYLLABUS FOR I B.Sc., PHYSICS MODULE-I [WAVES & OSCILLATIONS] SEMESTER II (As Approved in the BOS meeting held on 26 March 2016 for 2016-17) UNIT I : 12 Hrs 1.