CSIR-NET Physical Science
CSIR-UGC National Eligibility Test (NET) for Junior
Research Fellowship
and Lecturer-ship
PHYSICAL SCIENCES
P AR T ‘ A’
CORE
I.
Mathematical Methods of Physics
Dimensional analysis. Vector algebra and vector
calculus. Linear algebra, matrices, Cayley-Hamilton
Theorem. Eigenvalues and eigenvectors. Linear ordinary
differential equations of first & second order,
Special functions (Hermite, Bessel, Laguerre and
Legendre functions). Fourier series, Fourier and Laplace
transforms. Elements of complex analysis, analytic
functions; Taylor & Laurent series; poles, residues
and evaluation of integrals. Elementary probability
theory, random variables, binomial, Poisson and
normal distributions. Central limit theorem.
II.
Classical Mechanics
Newton’s laws.
Dynamical systems, Phase space dynamics, stability analysis. Central
force motions.
Two body Collisions – scattering in laboratory and
Centre of mass frames. Rigid body
dynamics-
moment of inertia tensor. Non-inertial frames and
pseudoforces. Variational principle. Generalized
coordinates. Lagrangian and Hamiltonian formalism and
equations of motion. Conservation laws and
cyclic coordinates. Periodic motion: small oscillations, normal modes. Special
theory of relativity-
Lorentz transformations, relativistic kinematics and
mass–energy equivalence.
III.
Electromagnetic Theory
Electrostatics:
Gauss’s law and
its applications,
Laplace
and Poisson equations,
boundary value
problems. Magnetostatics: Biot-Savart law, Ampere’s
theorem. Electromagnetic induction. Maxwell’s
equations in free space and linear isotropic media;
boundary conditions on the fields at interfaces. Scalar
and vector potentials, gauge invariance.
Electromagnetic waves in free space. Dielectrics and conductors.
Reflection and refraction, polarization, Fresnel’s
law, interference, coherence, and diffraction. Dynamics
of charged particles in static and uniform
electromagnetic fields.
IV. Quantum
Mechanics
Wave-particle
duality. Schrödinger equation
(time-dependent and time-independent). Eigenvalue
problems (particle in a box, harmonic oscillator,
etc.). Tunneling through a barrier. Wave-function in
coordinate and momentum representations. Commutators
and Heisenberg uncertainty principle. Dirac
notation for state vectors. Motion in a central
potential: orbital angular momentum, angular momentum
algebra,
spin, addition of
angular momenta; Hydrogen
atom. Stern-Gerlach experiment.
Time-
independent
perturbation theory and
applications. Variational method.
Time dependent perturbation
theory and Fermi’s golden rule, selection rules.
Identical particles, Pauli exclusion principle, spin-statistics
connection.
V.
Thermodynamic and Statistical Physics
Laws of thermodynamics and
their consequences. Thermodynamic
potentials, Maxwell relations,
chemical potential, phase equilibria. Phase space,
micro- and macro-states. Micro-canonical, canonical
and grand-canonical ensembles and partition functions.
Free energy and its connection with
thermodynamic quantities. Classical and quantum
statistics. Ideal Bose and Fermi gases. Principle of
detailed balance. Blackbody radiation and Planck’s
distribution law.
VI.
Electronics and Experimental Methods
Semiconductor devices (diodes, junctions, transistors,
field effect devices, homo- and hetero-junction
devices), device structure, device characteristics,
frequency dependence and applications. Opto-electronic
devices (solar cells, photo-detectors, LEDs).
Operational amplifiers and their applications. Digital
techniques and applications (registers, counters,
comparators and similar circuits). A/D and D/A
converters. Microprocessor and microcontroller basics.
Data interpretation and analysis. Precision and
accuracy. Error analysis, propagation of errors. Least
squares fitting,
P AR T ‘ B’
ADVANCED
I.
Mathematical Methods of Physics
Green’s function. Partial differential equations
(Laplace, wave and heat equations in two and three
dimensions). Elements of computational techniques:
root of functions, interpolation, extrapolation,
integration by trapezoid and Simpson’s rule, Solution
of first order differential equation using Runge-
Kutta method. Finite difference methods. Tensors.
Introductory group theory: SU(2), O(3).
II. Classical Mechanics
Dynamical
systems, Phase space
dynamics, stability analysis.
Poisson
brackets and canonical
transformations. Symmetry, invariance and Noether’s
theorem. Hamilton-Jacobi theory.
III.
Electromagnetic Theory
Dispersion relations in plasma. Lorentz invariance of
Maxwell’s equation. Transmission lines and wave
guides. Radiation- from moving charges and dipoles and
retarded potentials.
IV. Quantum
Mechanics
Spin-orbit coupling, fine structure. WKB
approximation. Elementary theory of scattering: phase shifts,
partial waves, Born approximation. Relativistic
quantum mechanics: Klein-Gordon and Dirac equations.
Semi-classical theory of radiation.
V.
Thermodynamic and Statistical Physics
First- and second-order phase transitions.
Diamagnetism, paramagnetism, and ferromagnetism. Ising
model.
Bose-Einstein condensation. Diffusion
equation. Random walk
and Brownian motion.
Introduction to nonequilibrium processes.
VI.
Electronics and Experimental Methods
Linear and nonlinear curve fitting, chi-square test.
Transducers (temperature, pressure/vacuum, magnetic
fields, vibration, optical, and particle detectors).
Measurement and control. Signal conditioning and
recovery. Impedance matching, amplification (Op-amp
based, instrumentation amp, feedback), filtering
and noise reduction, shielding and grounding. Fourier
transforms, lock-in detector, box-car integrator,
modulation techniques.
High frequency devices (including generators and
detectors).
VII. Atomic & Molecular Physics
Quantum states of an electron in an atom. Electron
spin. Spectrum of helium and alkali
atom. Relativistic
corrections for energy levels of hydrogen atom, hyperfine structure and isotopic shift, width
of spectrum
lines, LS & JJ couplings. Zeeman, Paschen-Bach
& Stark effects. Electron spin resonance. Nuclear
magnetic resonance, chemical shift. Frank-Condon
principle. Born-Oppenheimer approximation.
Electronic, rotational, vibrational and Raman spectra
of diatomic molecules, selection rules.
Lasers:
spontaneous
and stimulated emission,
Einstein A &
B coefficients. Optical
pumping, population
inversion, rate equation. Modes of resonators and
coherence length.
VIII. Condensed Matter Physics
Bravais lattices. Reciprocal lattice. Diffraction and
the structure factor. Bonding of solids. Elastic
properties, phonons, lattice specific heat. Free electron theory and electronic specific
heat. Response and
relaxation
phenomena.
Drude
model of electrical
and thermal conductivity. Hall
effect and
thermoelectric power. Electron motion in a periodic
potential, band theory of solids: metals, insulators
and semiconductors. Superconductivity: type-I and
type-II superconductors. Josephson junctions.
Superfluidity. Defects and dislocations. Ordered phases of matter: translational and
orientational order,
kinds of liquid crystalline order. Quasi crystals.
IX.
Nuclear and Particle Physics
Basic nuclear properties: size, shape and charge
distribution, spin and parity. Binding energy, semi-
empirical
mass formula, liquid
drop model. Nature
of the nuclear
force, form of
nucleon-nucleon
potential, charge-independence and charge-symmetry of
nuclear forces. Deuteron problem. Evidence of
shell structure, single-particle shell model, its
validity and limitations. Rotational spectra. Elementary
ideas of alpha, beta and gamma decays and their
selection rules. Fission and fusion. Nuclear reactions,
reaction mechanism, compound nuclei and direct
reactions.
Classification of fundamental forces. Elementary
particles and their quantum numbers (charge, spin,
parity, isospin, strangeness, etc.).
Gellmann-Nishijima formula. Quark model, baryons and mesons. C, P,
and T invariance. Application of symmetry arguments to
particle reactions. Parity non-conservation in
weak interaction.
Relativistic kinematics.
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