Thursday, 19 January 2012

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PHYSICS SYLLABUS POST OF FOREST RANGE OFFICERS

PHYSICS SYLLABUS


1.  Mechanics  and  Waves:    Dimensional  analysis.    Newton’s  laws  of  motion  and
applications,  variable  mass  systems,  projectiles.   Rotational  dynamics kinetic  energy,  angular
momentum,  theorems  of  moment  of  inertia  and  calculations  in  simple  cases.    Conservative
forces, frictional forces.  Gravitational potential and intensity due to spherical objects.  Central
forces,  Kepler’s  problem,  escape  velocity  and  artificial  satellites  (including  GPS).    Streamline
motion, viscosity, Poiseuille’s equation.  Applications of Bernoulli’s equation and Stokes’ law.  

Special  relativity  and  Lorentz  transformation length  contraction,  time  dilation,  mass energy
relation.
Simple  harmonic  motion,  Lissajous  figures.  Damped  oscillation,  forced  oscillation  and
resonance.  Beats, Phase and group velocities.  Stationary waves, vibration of strings and air
columns, longitudinal waves in solids.  Doppler effect.  Ultrasonics and applications.

2.  Geometrical and Physical Optics:    Laws  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 spherical aberrations.  Simple optical instruments magnifier, eyepieces,
telescopes and microscopes.

Huygen’s  principle reflection  and  refraction  of  waves.    Interference  of  light  –  Young’s
experiment,  Newton’s  rings,  interference  by  thin  films,  Michelson  interferometer.    Fraunhofer
diffraction single  slit,  double  slit,  diffraction  grating,  resolving  power.    Fresnel  diffraction   half
period  zones  and  zone  plate.    Production  and  detection  of  linearly,  circularly  and  elliptically
polarized  light.    Double  refraction,  quarter waves plates  and  half wave  plates.    Polarizing
sheets.  Optical activity and applications.  Raman & Rayleigh scattering and applications.

Elements of fibre optics attenuation; pulse dispersion in step index and parabolic index fibres;
material  dispersion.    Lasers,  characteristics  of  laser  light spatial  and  temporal  coherence. 
Focusing of laser beams and applications.

3.  Heat and Thermodynamics:  Thermal equilibrium and temperature.  The zeroth law of
thermodynamics.    Heat  and  the  first  law  of  thermodynamics.    Efficiency  of  Carnot  engines. 
Entropy and the second law of thermodynamics.  Kinetic theory and the equation of state of an
ideal  gas.    Mean  free  path,  distribution  of  molecular  speeds  and  energies.    Trasport
phenomena.    Andrew’s  experiments van  der  Waals  equation  and  applications.    Joule Kelvin
effect and applications.  Bronian motion.  Thermodynamic potentials Maxwell relations.  Phase
transitions.  Kirchhoff’s laws.  Black body radiation – Stefan Boltzmann law, spectral radiancy,
Wien  displacement  law,  application  to  the  cosmic  microwave  background  radiation,  Planck
radiation law.

4.  Electricity and Magnetism:  Electric charge, Coulomb’s law, electric field, Gauss’ law. 
Electric potential, van de Graff accelerator.  Capacitors, dielectrics and polarization.  Ohm’s law,
Kirchhoff’s  first  and  second  rules,  resistors  in  series  and  parallel,  applications  to  two loop
circuits.    Magnetic  field Gauss’  law  for  magnetism,  atomic  and  nuclear  magnetism,  magnetic
susceptibility,  classification  of  magnetic  materials.    Cirulating  charges,  cyclotron,  synchrotron. 
Hall effect. Biot Savart law, Ampere’s law, Faraday’s law of induction – Lenz’s law. Inductance.
Alternating current circuits – RC, LR, single loop LRC circuits, impedance, resonance, power in
AC  circuits.  Displacement  current,  Maxwell’s  equations  (MKS  Units),  electromagnetic  waves,
energy transport and Poynting vector.
 
5.  Atomic and Nuclear Physics:
  Photoelectric  effect,  Einstein’s  photon  theory.    Bohr’s
theory  of  hydrogen  atom.  Stern  Gerlach  experiment,  quantisation  of  angular  momentum,
electron  spin.    Pauli  exclusion  principle  and  applications.    Zeeman  effect.  X ray  spectrum,
Bragg’s  law,  Bohr’s  theory  of  the  Mosley  plot.    Compton  effect,  Compton  wavelength.    Wave
nature  of  matter,  de  Broglie  wavelength,  wave particle  duality.    Heisenberg’s  uncertainty
relationships.  Schroedinger’s equation eigenvalues and eigenfunctions of (i) particle in a box,
(ii)  simple  harmonic  oscillator  and  (iii)  hydrogen atom.    Potential  step  and  barrier  penetration. 
Natural  and  artificial  radioactivity.    Binding  energy  of  nuclei,  nuclear  fission  and  fusion. 
Classification of elementary particles and their interactions.

6.  Electronics.:   Diodes  in  half waves  and  full wave  rectification,  qualitative  ideas  of
semiconductors  p  type  and  n  type  semiconductors,  junction  diode,  Zener  diode,  transistors,
binary numbers, Logic gates and truth tables, Elements of microprocessors and computers.







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