Gauhati University Question Papers for Physics 2nd Semester
Gauhati University Question Papers for Physics 2nd Semester
Question Paper from 2010 available
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Paper 101
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Paper 102
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2010
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2011
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SECOND SEMESTER
PAPER: 201 (THEORY)
(a) MATHEMATICAL METHODS-II:
1. Integration of vectors: Ordinary integration of vectors. Line integral, surface integral and volume integrals and their applications to simple problems.Green's theorem in the plane Gauss's divergence theorem, Stokes’ theorem and their applications.
2. Curvilinear co-ordinate system: Curvilinear co-ordinates, Unit vectors and scale factors in curvilinear co-ordinates systems, orthogonal curvilinear co-ordinates, plane polar co- ordinates, right circular cylindrical co-ordinates and spherical polar co-ordinates. Arc length, area and volume elements in each of these systems. Divergence, curl and Laplacian in plane polar co-ordinates, right circular cylindrical co-ordinates and spherical polar co-ordinates. Application of above concept to simple physical phenomena.
3. Gamma and Dirac Delta function: Elementary introduction to Gamma function and
Dirac Delta function.
(b) PROPERTIES OF MATTER:
1. Elasticity: Different type of elastic constants and relation among them. Energy in a strained body, torsion of a rod, torsional oscillation, bending of beam, bending moment, cantilever,
depression of a cantilever considering the weight of the beam.
2. Surface tension: Surface tension, relation between surface tension and surface energy E=S-T dS/dT, excess pressure inside a curved liquid surface. Determination of surface tension by ripple method.
3. Viscosity: Poiseullie's equation for flow of a liquid through narrow tube. Determination of viscosity by rotating viscometer.
PAPER: 202 (THEORY)
HEAT AND THERMODYNAMCS:
1. Kinetic theory of gases, pressure exerted by a gas using spherical polar coordinates, degree of freedom, law of equipartition of energy, Maxwell Law of velocity distribution, Maxwellian mean free path, transport phenomena – viscosity, Brownian motion (Einstein’s – Langevin’s theory), experimental determination of Avogadro’s number, examples of Brownian motion.
2. Equation of state of a gas, Andrew’s experiment, Van der Waal’s equation of state, critical constants and law of corresponding states. Thermal conductivity, Fourier
equation for rectilinear flow of heat and its solution. Platinum resistance thermometer
Thermal conductivity, Fourier equation for rectilinear flow of heat and its solution. Platinum resistance thermometer.
3. Zeroth and first law of thermodynamics, specific heats of gases, isothermal and adiabatic processes. Reversible and irreversible processes, conversion of heat into work, Carnot cycle, Carnot’s theorem. Second law of thermodynamics: Heat engine, Kelvin-Planck statement of second law, Clausius’ statement of second law, equivalence of Kelvin-Planck and Clausius’ statements, Kelvin’s thermodynamical scale of temperature and its relation to perfect gas scale, Clausius formulation of entropy, entropy changes in reversible and irreversible processes, entropy of ideal gas, relation between entropy and probability. 15 Lectures
4. Enthalpy, Gibbs-Helmholtz function, Maxwell’s thermodynamic relations and their applications, Gibbs phase rule, triple point, Joule-Thomson effect, adiabatic demagnetization. Black body radiation, Kirchoff’s law of radiation, radiation pressure,
Stefan-Boltzmann law, Wein’s displacement law, Rayleigh-Jean’s law, Planck’s radiation law.
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