Random Thoughts

Generic Elective for 2019 CBCS scheme. Syllabi GE:II-OPTICS, SPECIAL THEORY OF RELATIVITY. ATOMIC PHYSICS, QUANTUM MECHANICS & NUCLEAR PHYSICS (Credits: Theory-04, Practicals 02) Theory: 40 classes (1hr duration each)-Full Marks: 70 UNIT-I: Optics-I (8 classes: 14 Marks) Elementary ideas of monochromatic aberrations and their minimization, chromatic aberration, achromatic combination. Theory of formation of Primary and Secondary rainbow. Condition of interference. Coherent sources. Youngs Double Slit experiment. Biprism and measurement of wave length of light of by it. Colour of thin films and Newtons rings. Fresnel and Fraunhoffer diffraction, diffraction by Single slit Plane transmission grating. UNIT-II: Optics-II and Relativity (8 Classes: 14 Marks) Electromagnetic nature of light, polarized and unpolarized light, polarization by reflection and refraction. Brewsters Law, Malus Law, Double refraction. Ordinary and extraordinary rays. Galilean transformation, Newtonian re...

MDC Physics: Nano Materials and Applications Related: 2019 CBCS : DSE 3 Nano Physics Syllabus To be added. Questions 2025 | +3-II-S-NEP-Major/Minor-MDC-P2-Arts/Sc/Com - Phy-NMA | Full Marks: 100 (Nano Materials and Applications) PART-I | Answer all the following Questions. | 1x10 The dielectric constant of nanostructures depends on their _____. The recombination of an electron and a hole produces _____. _____ is used to visualize atomic-scale features of nanostructures. Atomic Force Microscopy (AFM) measures surface ______. The technique used to determine the crystal structure of nanomaterials is ______. The growth of quantum dots using Molecular Beam Epitaxy (MBE) is a ______ approach. In sol-gel synthesis, the starting materials are typically ______ . Quantum confinement occurs when the particle size is comparable to the _____ of the carriers. The density of states at the nanoscale depends on the _____ of the material. Nanowires are an example of a _____ nanostruc...

Minor Papers 1, 2 and 3. Syllabus Major Core/Paper 1, 2 & 3 as Minor Paper 1, 2 & 3, respectively. Questions 2025 | +3-II-S-NEP-Minor-II-P-1-Sc-Phy. | Full Marks: 100 PART-I | Answer all the following Questions. | 1x10 The integrating factors of $\frac{dy}{dx} + y = 3e^x y^3$ is _____ . Value of curl $\phi \vec{A}$ is _____ . If $\vec{\nabla} \times \vec{ F } = 0$ then $\vec{ F}$ is _____. $f(x) . \delta(x - a) =$ _____ . $\vec{\nabla} \phi$ in cylindrical co-ordinate is _______. Pressure field is an example of _____ field. Formula for Wronskian $W(y_{1}, y_{2})$ is _____ . The cylindrical coordinate system is orthogonal. (True/False) Flux of vector field is a scalar quantity. (Yes/No) Value of $\hat{ i}\times ( \hat{ j} \times \hat {k })=$ ______. PART-II | Answer the following question. | 2x9 Write the condition for Exactness. Plot the graph of y = x + 1/x. Show that $ div ( \vec {r}/ r^ 3 )=0$. State Green's theorem in a plane. Find the value of ...

Core XV : Statistical Mechanics Old CBCS Core XIV : Statistical Mechanics ( Concept of ensembles and its partition function, phase space and thermodynamic relations, MB distribution law, Addition of entropy, Sackur Tetrode equation, Law of equipartition of Energy and its application, Basic postulates and different distribution of Fermi and Dirac particles and B-E condensation, Basic knowledge in thermal and Black body radiation, Concept of different laws of radiation and their experimental verification. ) Syllabus Unit I Classical Statistics-I : Macro state and Microstate, Elementary Concept of Ensemble, Micro canonical, Canonical and Grand Canonical ensemble, Phase Space, Entropy and Thermodynamic Probability, Maxwell-Boltzmann Distribution Law, Partition Function. Unit II Classical Statistics-II : Thermodynamic Functions of an Ideal Gas, classical Entropy Expression, Gibbs Paradox, Sackur Tetrode equation, Law of equipartition of Energy (with proof)- Applications to Spec...

Core XIV : Electromagnetic Theory CBCS 2019 : Core-XIII : Electromagnetic Theory Syllabus Course Outcomes: * Physical significance of Maxwell Equation and its application to free space, Lorentz and Coulomb gauge transformation, poynting theorem, concept of energy density. * Analysis of Maxwell’s equat ions in different media and Physical significance o f relaxation time, skin depth, Electrical conductivity of ionized gases, plasma frequency. * Basic understanding of polarization of EM wave, and different types of crystals, Phase. * Retardation Plates and Rotatory Polarization. * Conceptual understanding of EMW application in bounded media, plane interface, dielectric media, Brewster’s law, TIR, Evanescent wave, metallic reflection. * To Apply the acquired knowledge for visualize basic concept of phenomenon of light in various experiments) Unit I * Maxwell Equations : Maxwells equations, Displacement Current, Vector and Scalar Potentials, Gauge Transformations: Lorentz and Coulom...

Core XIII: Solid State Physics CBCS 19 : Core XII Syllabus Unit I Crystal Structure : Solids, Amorphous and Crystalline Materials, Lattice translation Vectors, Lattice with a Basis. Central and Non-Central Elements. Unit Cell, Miller Indices, Types of Lattices, Reciprocal Diffraction of X- rays by crystals, Bragg’s Law, Laue’s Condition, Atomic and Geometrical Factor. Unit II Elementary Lattice Dynamics : Lattice Vibrations and Phonons: Linear, Monoatomic and Diatomic Chains, Acoustical and Optical Phonons, Qualitative Description of the phonon spectrum in solids, Dulong and Petits Law, Einstein and Debye theories of specific heat of solids, $T^3$ Law. Elementary band theory: Kroning-Penny model of band Gap, Conductor, Semiconductor (P and N type) and insulator, Conductivity of Semiconductor, mobility, Hall Effect, Measurement of conductivity (four probe method) and Hall Co-efficient. Unit III Magnetic Properties of Matter : Dia-, Para-, Ferri- and Ferro-magnetic Ma...

Core XII: Quantum Mechanics and Applications CBCS 2019: Core 11 Syllabus Unit I Schrodinger equation : Time dependent Schrodinger equation, Properties of Wave Function, Physical interpretation of wave function, Wave function of a free particle, Normalization, Probability current and probability current densities in three dimensions, Linearity and Superposition Principle, Wave Packet, Fourier Transform Theorem, Momentum space wave function and its significance, Representation of position vector in momentum space. Schrodinger equation in momentum space. Unit II Time Independent Schrodinger equation in 1-D, 2-D and 3-D, Hamiltonian, stationary states and energy Eigen values, expansion of an arbitrary wave function as a linear combination of energy Eigen functions, General solution of the time dependent Schrodinger equation in terms of linear combinations of stationary states. General Discussion of Bound states in an arbitrary potential: Continuity of wave function, Bound...

Core X : Nuclear and Particle Physics Similar : CBCS 2019: DSE 2 (Nuclear and Particle Physics) AND Old Core-IX (Elements of Modern Physics). ( atoms in electric and magnetic field, Nuclear physics, nuclear models and nuclear reactions, particle physics. ) Syllabus Unit I Atoms in Electric and Magnetic Fields : Electron angular momentum. Space quantization, Electron Spin and Spin Angular Momentum, Larmor's Theorem, Spin Magnetic Moment, Stern Gerlach Experiment, Vector Atom Model, L-S and J-J coupling, Zeeman Effect, Electron Magnetic Moment and Magnetic Energy, Gyro magnetic Ratio and Bohr Magnetron. Atoms in External Magnetic Fields: Normal and Anomalous Zeeman Effect, Paschen back and Stark-Effect (qualitative Discussion only). Unit II Nuclear Physics- : Nuclear composition, charge, size, shape, mass and density of the nucleus; Nuclear angular momentum; Nuclear magnetic dipole moment ; Electric quadrupole moment; Mass defect; Packing fraction and Binding energy...