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Upon successful completion of this course, students will be able to:
Planck’s quantum, Planck’s constant and light as a collection of photons; Blackbody
Radiation: Quantum theory of Light; Photo-electric effect and Compton scattering. De Broglie wavelength and matter waves; Davisson-Germer experiment. Wave description of particles by wave packets. Group and Phase velocities and relation between them. Two-Slit experiment with electrons. Probability. Wave amplitude and wave functions.
Practice 1: Measurement of Planck’s constant using black body radiation and photo-detector
Practice 2: Photo-electric effect: photo current versus intensity and wavelength of light; maximum energy of photo-electrons versus frequency of light
Practice 3 : To determine the wavelength of H-alpha emission line of Hydrogen atom.
Position measurement- gamma ray microscope thought experiment; Wave-particle duality, Heisenberg uncertainty principle (Uncertainty relations involving Canonical pair of variables): Derivation from Wave Packets impossibility of a particle following a trajectory; Estimating minimum energy of a confined particle using uncertainty principle; Energy-time uncertainty principle- application to virtual particles and range of an interaction.
Practice 4 : To determine the ionization potential of mercury.
Two slit interference experiment with photons, atoms and particles; linear superposition principle as a consequence; Matter waves and wave amplitude; Schrodinger equation for non-relativistic particles; Momentum and Energy operators; stationary states; physical interpretation of a wave function, probabilities and normalization; Probability and probability current densities in one dimension.
Practice 5 : To determine the value of e/m by (a) Magnetic focusing or (b) Bar magnet.
Practice 6 : To setup the Millikan oil drop apparatus and determine the charge of an electron.
One dimensional infinitely rigid box- energy eigenvalues and Eigen functions, normalization; Quantum dot as example; Quantum mechanical scattering and tunnelling in one dimension-across a step potential & rectangular potential barrier.
Size and structure of atomic nucleus and its relation with atomic weight; Impossibility of an electron being in the nucleus as a consequence of the uncertainty principle. Nature of nuclear force, NZ graph, Liquid Drop model: semi-empirical mass formula and binding energy, Nuclear Shell Model and magic numbers.
Radioactivity: stability of the nucleus; Law of radioactive decay; Mean life and half-life; Alpha decay; Beta decay- energy released, spectrum and Pauli's prediction of neutrino; Gamma ray emission, energy-momentum conservation: electron-positron pair creation by gamma photons in the vicinity of a nucleus.
Fission and fusion- mass deficit, relativity and generation of energy; Fission - nature of fragments and emission of neutrons.
Lasers: Einstein’s A and B coefficients. Metastable states. Spontaneous and Stimulatedemissions. Optical Pumping and Population Inversion. Three-Level and Four-Level Lasers. Ruby Laser and He-Ne Laser. Basic lasing.
Practice 7 : To determine the wavelength of laser source using diffraction of single slit.
Practice 8 : To determine the wavelength of laser source using diffraction of double slits.
Practice 9 : To determine (1) wavelength and (2) angular spread of He-Ne laser using plane diffraction grating
Practice 10 : To show the tunneling effect in tunnel diode using I-V characteristics.
Assignments : Monte-Carlo Simulation of charged particle induced effects on various materials (SRIM & IRADINA)
1. Concepts of Modern Physics, Arthur Beiser, 2002, McGraw-Hill.
1. Introduction to Modern Physics, Rich Meyer, Kennard, Coop, 2002, Tata McGraw Hill
2. Introduction to Quantum Mechanics, David J. Griffith, 2005, Pearson Education. Physics for scientists and Engineers with Modern Physics, Jewett and Serway, 2010, Cengage Learning.
3. Modern Physics, G.Kaur and G.R. Pickrell, 2014, McGraw Hill
4. Quantum Mechanics: Theory & Applications, A.K.Ghatak&S.Lokanathan, 2004, Macmillan
5. Modern Physics, J.R. Taylor, C.D. Zafiratos, M.A. Dubson, 2004, PHI Learning.
6. Theory and Problems of Modern Physics, Schaum`s outline, R. Gautreau and W. Savin, 2ndEdn, Tata McGraw-Hill Publishing Co. Ltd.
7. Quantum Physics, Berkeley Physics, Vol.4. E.H.Wichman, 1971, Tata McGraw-Hill Co.
Text Books (Practice)
1. Advanced Practical Physics for students, B.L. Flint and H.T. Worsnop, 1971, Asia Publishing House
1. Advanced level Physics Practicals, Michael Nelson and Jon M. Ogborn, 4th Edition, reprinted 1985, Heinemann Educational Publishers
2. A Text Book of Practical Physics, I.Prakash& Ramakrishna, 11thEdn, 2011,Kitab Mahal
Reference Books (Assignments on Monte-Carlo Simulation) : SRIM, The stopping and range of ions in matter, James F. Ziegler, Jochen P. Biersack, Matthias D. Ziegler
Planck’s quantum, Planck’s constant and light as a collection of photons :
De Broglie wavelength and matter waves;
Two-Slit experiment with electrons (Assignment/ Flipped Class - 3)
Wave-particle duality, Heisenberg uncertainty principle (Uncertainty relations involving Canonical pair of variables):
Energy-time uncertainty principle- application to virtual particles and range of an interaction :
Radioactivity: stability of the nucleus; Law of radioactive decay; Mean life and half-life;
Fission and fusion- mass deficit, relativity and generation of energy; Fission - nature of fragments and emission of neutrons :