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Thursday, July 5, 2007

Physical Science Syllabus Paper 2

Physical Science Syllabus Paper 2


Part 'A' ( Weightage 50%) SYLLABUS SAME AS FOR PAPER - I (SECTION - B)

Part 'B' Weightage 50%

1. Electronics : Physics of p-n junction. Diode as a circuit element; clipping, clamping; Rectification, Zener regulated power supply: Transistor as a circuit element: CC, CB and CE configuration. Transistor as a switch, OR, AND, NOT gates. Feed back in Amplifiers.

Operational amplifier and its applications: inverting, non - inverting amplifier, adder, integrator, differentiator, wave form generator, comparator & Schmidt trigger.

Digital integrated circuits - NAND & NOR gates as building blocks, X-OR Gate, simple combinational circuits, Half & Full adder, Flip-flop, shift register, counters Basic principles of A/D & D/A converters; Simple applications of A/D & D/A converters.

2. Atomic & Molecular Physics: Quantum states of an electron in an atom. Hydrogen atom spectrum. Electron spin. Stern- Gerlach experiment. Spin-orbit coupling, fine structure, relativistic correction, spectroscopic terms and selection rules, hyperfine structure. Exchange symmetry of wave functions. Pauli's exclusion principle, periodic table alkali - type spectra, LS & JJ coupling, Zeeman, Paschen-Back and Stark effects.

X-Rays and Auger transitions, Compton effect.

Principles of ESR, NMR ; Molecular Physics: Convalent, ionic and Van der Waal's interaction.

Rotation/Vibration spectra. Raman Spectra, selection rules, nuclear spin and intensity alternation, isotope effects, electronic states of diatomic molecules, Frank-Condon principle. Lasers-spontaneous and stimulated emission, optical pumping, population inversion, coherence (temporal and spatial) simple description of Ammonia maser, CO2 and He-Ne Lasers.

3. Condensed Matter Physics: Crystal classes and systems, 2d & 3d lattices, Bonding of common crystal structures, reciprocal lattice, diffraction and structure factor, elementary ideas about point defects and dislocations.

Lattice vibrations, Phonons, specific heat of solids, free electron theory-Fermi statistics; heat capacity.

Electron motion in periodic potential, energy bands in metals, insulators and semi-conductors; tight binding approximation; impurity levels in doped semi-conductors. Electronic transport from classical kinetic theory, electrical and thermal conductivity. Hall effect and thermo-electric power transport in semi-conductors.

Di-electrics-Polarization mechanisms, Clausius-Mossotti equation, Piezo, Pyro and ferro electricity.

Dia and Para magnetism; exchange interactions, magnetic order, ferro, anti-ferro and ferrimagnetism.

Super conductivity-basic phenomenology; Meissner effect, Type-1 & Type-2 Super conductors, BCS Pairing mechanism.

4. Nuclear and Particle Physics: Basic nuclear properties - size, shape, charge distribution, spin & parity, binding, empirical mass formula, liquid drop model.

5. Nature of nuclear force, elements of two-body problem, charge independence and charge symmetry of nuclear forces. Evidence for nuclear shell structure. Single particle shell model-its validity and limitations, collective model. Interactions of charged particles and e.m. rays with matter. Basic principles of particle detectors-ionization chamber; gas proportional counter and GM counter, scintillation and semiconductor detectors.

Radioactive decays, basic theoretical understanding. Nuclear reactions, elementary ideas of reaction mechanisms, compound nucleus and direct reactions, elementary ideas of fission and fusion.

Particle Physics: Symmetrics an conservation laws, classification of fundamental forces and elementary particles, iso-spin, strangeness, Gell-Mann Nishijima formula, Quark model. C,P,T, invariance in different interactions, parity-nonconservation in weak interaction.
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