of Part B - Main Examination of Civil Services Exam
Back to Section III
Back to List
(a) Mechanics of Particles:
of motion; conservation of energy and momentum, applications to rotating frames,
centripetal and Coriolis accelerations; Motion
under a central force; Conservation of angular momentum, Keplerís laws; Fields
and potentials; Gravitational field and potential due to spherical bodies, Gauss
and Poisson equations, gravitational self-energy; Two-body problem; Reduced
mass; Rutherford scattering; Centre of mass and laboratory reference frames.
Mechanics of Rigid Bodies:
of particles; Centre of mass, angular momentum, equations of motion;
Conservation theorems for energy, momentum and angular momentum; Elastic and
inelastic collisions; Rigid body; Degrees of freedom, Eulerís theorem, angular
velocity, angular momentum, moments of inertia, theorems of parallel and
perpendicular axes, equation of motion for rotation; Molecular rotations (as
rigid bodies); Di and tri-atomic molecules; Precessional motion; top, gyroscope.
Mechanics of Continuous Media:
Hookeís law and elastic constants of isotropic solids and their
inter-relation; Streamline (Laminar) flow, viscosity, Poiseuilleís equation,
Bernoulliís equation, Stokesí law and applications.
experiment and its implications; Lorentz transformations-length contraction,
time dilation, addition of relativistic velocities, aberration and Doppler
effect, mass-energy relation, simple applications to a decay process; Four
dimensional momentum vector; Covariance of equations of physics.
Waves and Optics:
harmonic motion, damped oscillation, forced oscillation and resonance; Beats;
Stationary waves in a string; Pulses and wave packets; Phase and group
velocities; Reflection and Refraction from Huygens' principle.
of reflection and refraction from Fermat's principle; Matrix method in paraxial
optics-thin lens formula, nodal planes, system of two thin lenses, chromatic and
of light-Young's experiment, Newton's rings, interference by thin films,
Michelson interferometer; Multiple beam interference and Fabry-Perot
diffraction-single slit, double slit, diffraction grating, resolving power;
Diffraction by a circular aperture and the Airy pattern; Fresnel diffraction:
half-period zones and zone plates, circular aperture.
Polarization and Modern Optics:
and detection of linearly and circularly polarized light; Double refraction,
quarter wave plate; Optical activity; Principles of fibre optics, attenuation;
Pulse dispersion in step index and parabolic index fibres; Material dispersion,
single mode fibres; Lasers-Einstein A and B coefficients; Ruby and He-Ne lasers;
Characteristics of laser light-spatial and temporal coherence; Focusing of laser
beams; Three-level scheme for laser operation; Holography and simple
Electricity and Magnetism:
and Poisson equations in electrostatics and their applications; Energy of a
system of charges, multipole expansion of scalar potential; Method of images and
its applications; Potential and field due to a dipole, force and torque on a
dipole in an external field; Dielectrics, polarization; Solutions to
boundary-value problems-conducting and dielectric spheres in a uniform electric
field; Magnetic shell, uniformly magnetized sphere; Ferromagnetic materials,
hysteresis, energy loss.
laws and their applications; Biot-Savart law, Ampere's law, Faraday's law, Lenz'
law; Self-and mutual-inductances; Mean and r m s values in AC circuits; DC and
AC circuits with R, L and C components; Series and parallel resonances; Quality
factor; Principle of transformer.
Electromagnetic Waves and Blackbody Radiation:
current and Maxwell's equations; Wave equations in vacuum, Poynting theorem;
Vector and scalar potentials; Electromagnetic field tensor, covariance of
Maxwell's equations; Wave equations in isotropic dielectrics, reflection and
refraction at the boundary of two dielectrics; Fresnel's relations; Total
internal reflection; Normal and anomalous dispersion; Rayleigh scattering;
Blackbody radiation and Planckís radiation law, Stefan-Boltzmann law, Wienís
displacement law and Rayleigh-Jeansí law.
4. Thermal and Statistical
of thermodynamics, reversible and irreversible processes, entropy; Isothermal,
adiabatic, isobaric, isochoric processes and entropy changes; Otto and Diesel
engines, Gibbs' phase rule and chemical potential; van der Waals equation of
state of a real gas, critical constants; Maxwell-Boltzman distribution of
molecular velocities, transport phenomena, equipartition and virial theorems;
Dulong-Petit, Einstein, and Debye's theories of specific heat of solids; Maxwell
relations and applications; Clausius- Clapeyron equation; Adiabatic
demagnetisation, Joule-Kelvin effect and liquefaction of gases.
and micro states, statistical distributions, Maxwell-Boltzmann, Bose-Einstein
and Fermi-Dirac distributions, applications to specific heat of gases and
blackbody radiation; Concept of negative temperatures.
dualitiy; Schroedinger equation and expectation values; Uncertainty principle;
Solutions of the one-dimensional Schroedinger equation for a
free particle (Gaussian wave-packet), particle in a box, particle in a
finite well, linear harmonic oscillator; Reflection and transmission by a step
potential and by a rectangular barrier; Particle in a three dimensional box,
density of states, free electron theory of metals; Angular momentum; Hydrogen
atom; Spin half particles, properties of Pauli spin matrices.
Atomic and Molecular Physics:
experiment, electron spin, fine structure of hydrogen atom; L-S coupling, J-J
coupling; Spectroscopic notation of atomic states; Zeeman effect; Frank-Condon
principle and applications; Elementary theory of rotational, vibratonal and
electronic spectra of diatomic molecules; Raman effect and molecular structure;
Laser Raman spectroscopy; Importance of neutral hydrogen atom, molecular
hydrogen and molecular hydrogen ion in astronomy; Fluorescence and
Phosphorescence; Elementary theory and applications of NMR and EPR; Elementary
ideas about Lamb shift and its significance.
Nuclear and Particle Physics:
nuclear properties-size, binding energy, angular momentum, parity, magnetic
moment; Semi-empirical mass formula and applications, mass parabolas; Ground
state of deuteron, magnetic moment
and non-central forces; Meson theory of nuclear forces; Salient features of
nuclear forces; Shell model of the nucleus - successes and limitations;
Violation of parity in beta decay; Gamma decay and internal conversion;
Elementary ideas about Mossbauer spectroscopy; Q-value of nuclear reactions;
Nuclear fission and fusion, energy production in stars; Nuclear reactors.
of elementary particles and their interactions; Conservation laws; Quark
structure of hadrons; Field quanta of electroweak and strong interactions;
Elementary ideas about unification of forces; Physics of neutrinos.
Solid State Physics, Devices and Electronics:
and amorphous structure of matter; Different crystal systems, space groups;
Methods of determination of crystal structure; X-ray diffraction, scanning and
transmission electron microscopies; Band theory of solids - conductors,
insulators and semiconductors; Thermal properties of solids, specific heat,
Debye theory; Magnetism: dia, para and ferromagnetism; Elements of
superconductivity, Meissner effect, Josephson junctions and applications;
Elementary ideas about high temperature superconductivity.
and extrinsic semiconductors; p-n-p and n-p-n transistors; Amplifiers and
oscillators; Op-amps; FET, JFET and MOSFET; Digital electronics-Boolean
identities, De Morgan's laws, logic gates and truth tables; Simple logic
circuits; Thermistors, solar cells; Fundamentals of microprocessors and digital
Back to Section III
Back to Top