SSB Odisha Laboratory Assistant-cum-Storekeeper Syllabus 2026 – Physics (Digital + PDF)

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Subject: Physics

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Unit 1: Mechanics, Sound and Properties of Matter

• Simple harmonic motion, damped harmonic motion
• Underdamped, overdamped and critically damped motion
• Forced vibration, resonance, sharpness of resonance, Q-factor
• Composition of simple harmonic motions
• Lissajous figures for superposition of two orthogonal SHM
• Vibration of strings, theory of plucked, struck and bowed strings
• Production, properties and uses of ultrasonic waves

Unit 2: Gravitation and Central Force Motion

• Gravitational potential and field due to homogeneous solid sphere and spherical shell
• Compound pendulum, Kater's pendulum
• Central force motion, reduction of two body central force motion
• General features of central force motion, differential equation of orbit
• Kepler's laws of planetary motion, Virial theorem

Unit 3: Thermal and Statistical Physics

• Thermodynamic system, equilibrium, zeroth law of thermodynamics
• Thermodynamic processes, work done in isothermal and isobaric processes
• Internal energy, first law of thermodynamics, application to various processes
• Expression for Cp - Cv
• Equation of state for adiabatic process, work done in adiabatic process, polytropic process
• Heat engine, Carnot engine, Carnot cycle, Carnot's theorem
• Second law of thermodynamics, entropy, enthalpy
• Helmholtz free energy, Gibbs function
• Maxwell's thermodynamic relations, Clausius-Clapeyron equation
• Joule-Thomson effect, first order phase transition
• Statistical system, microstate and macrostate
• Ensembles in statistical systems – microcanonical, canonical and grand canonical ensembles
• Entropy and thermodynamic probability, partition function

Unit 4: Electrostatics

• Coulomb's law, electric field
• Field due to electric dipole, discrete distribution of charge and continuous distribution of charge
• Gauss law of electrostatics
• Field due to linear, spherical and plane charge distributions
• Curl of the electrostatic field, electrostatic potential
• Relation between electric field and electric potential, work done in moving a charge
• Electrostatic energy of discrete and continuous charge distributions
• Electrostatic boundary conditions, surface charge on conductors
• Differential form of Gauss law, Laplace's equation, Poisson's equation
• Solution of Laplace's equation in spherical polar coordinate system
• Conducting sphere in uniform electric field
• Dielectric polarization, electric field inside a dielectric material
• Gauss law in a dielectric medium, linear dielectric medium
• Electric susceptibility, permittivity, dielectric constant
• Boundary conditions on the displacement vector D
• Dielectric sphere in an external uniform electric field
• Force on a point charge embedded in a dielectric medium
• Molecular field in a dielectric, Clausius-Mossotti relation
• Energy in a dielectric medium
• Electric current, current density, equation of continuity
• Electromotive force, Ohm's law

Unit 5: Magnetism

• Magnetic induction B, Lorentz force law
• Force on a straight current carrying conductor in uniform magnetic field
• Biot-Savart law
• Magnetic induction due to straight, circular and solenoidal currents
• Ampere's circuital law and its differential form
• Magnetic vector potential, magnetic field due to a distant circuit
• Magnetic scalar potential
• Torque on a current loop placed in an external uniform magnetic field
• Moving coil and ballistic galvanometer
• Magnetic properties of matter, magnetization
• Ampere's law in a magnetized medium
• Magnetic susceptibility and permeability
• Boundary conditions on H and D
• Langevin theory in magnetism, diamagnetism and paramagnetism
• Weiss theory of ferromagnetism, magnetic hysteresis

Unit 6: Electromagnetic Induction and AC Circuits

• Motional e.m.f.
• Faraday's laws of electromagnetic induction, its differential and integral forms
• Induced electric field due to a long conductor carrying slowly varying current
• Self-inductance, mutual inductance
• Self-inductance of a solenoid and of a straight conductor
• Energy stored in an inductor in an electromagnetic field
• Growth and decay of currents in RC, RL and LCR circuits
• Alternating current, sinusoidal voltage applied to RC, RL, LC and LCR circuits
• Power in AC circuit
• Series and parallel resonant circuits
• Sharpness of resonance, Q-factor of a resonant circuit

Unit 7: Maxwell's Equations and Electromagnetic Waves

• Displacement current, its physical significance
• Maxwell's modification of Ampere's law
• Maxwell's electromagnetic equations in free space and in a medium
• Vector potential and scalar potential for electromagnetic field
• Gauge transformation, Coulomb gauge and Lorenz gauge
• Electromagnetic wave, Poynting vector, Poynting theorem
• Energy and momentum of electromagnetic wave
• Propagation of e.m. wave in free space and in non-conducting medium
• Reflection and transmission of e.m. wave at non-conducting surface for normal incidence

Unit 8: Geometrical Optics

• Fermat's principle, reflection and refraction at plane interface
• Matrix formulation of geometrical optics
• Cardinal points of coaxial optical system
• Cardinal points of combination of two thin lenses, cardinal points of a thick lens
• Monochromatic aberration in lenses and mirrors, spherical aberration and its minimization
• Elementary idea of coma, astigmatism, curvature, distortion and their remedies
• Chromatic aberration and its removal, achromatic combination
• Ramsden's eyepiece, Huygens eyepiece
• Dispersion of light, theory of formation of primary and secondary rainbow

Unit 9: Physical Optics – Interference

• Wave theory of light, Huygens principle, reflection and refraction at plane interface
• Condition of interference of light, coherent sources of light
• Division of wavefront and division of amplitude, biprism
• Interference by plane parallel thin film, interference by wedge shaped thin film
• Colour of thin films, Newton's rings
• Michelson interferometer, determination of wavelength of monochromatic light
• Determination of wavelength difference, Fabry-Perot interferometer
• Resolving power of Fabry-Perot interferometer

Unit 10: Physical Optics – Diffraction

• Fresnel and Fraunhoffer diffraction, Fresnel's half period zone
• Zone plate, its analogy with converging lens
• Diffraction at straight edge
• Fraunhoffer diffraction by single slit, double slit and plane transmission grating
• Rayleigh scattering, Raman scattering

Unit 11: Polarisation

• Electromagnetic nature of light, polarised and unpolarised light
• Plane polarised, circularly polarised and elliptically polarised light
• Polarisation by reflection, refraction and scattering
• Malus law, Brewster's law
• Double refraction, ordinary and extraordinary rays
• Construction and working of Nicol prism, its use as polariser and analyser
• Half wave plate, quarter wave plate
• Babinet compensator, Laurent's half shade polarimeter

Unit 12: LASER

• Spontaneous and stimulated emission
• Optical pumping
• Properties and uses of LASER