UPSC Physics Syllabus 2020 – Check IAS Mains Optional Subjects

UPSC Physics Syllabus 2020 – Check IAS Mains Optional Subjects

UPSC conducts IAS exam in 3 successive stages i.e. Prelims, Mains, and Interview. In this league, UPSC Civil Services Mains Exam has Physics as one of the most preferred Optional Subjects. Herein, this article brings you the UPSC Physics syllabus 2020 for Physics Optional.

It includes two papers each one of 250 marks. In this way, the optional paper has a total weightage of 500 marks. Find underneath the UPSC Syllabus for Physics Optional Subject.

UPSC Physics Syllabus 2020 – Check Complete IAS Mains Physics Optional Subjects’ details  

The syllabus of the IAS exam for this subject includes statics and mechanics, thermodynamics, relativity, power and attraction, quantum hypothesis and strong state semiconductors among others.

UPSC Physics Syllabus for PAPER-I

Check out the below-mentioned table to know more:

UPSC Mains Physics Syllabus

Paper-I Syllabus Topics

Mechanics of Particles

Laws of motion, applications to rotating frames, conservation of energy and momentum; Motion under a central force, centripetal and Coriolis accelerations, Kepler’s laws; Fields and potentials; Conservation of angular momentum, Gauss and Poisson equations, Gravitational field and potential due to spherical bodies,Two-body problem; gravitational self-energy; Reduced mass; Centre of mass and laboratory reference frames, Rutherford scattering.

Mechanics of Rigid Bodies

The arrangement of particles; Center of mass, precise force, conditions of movement; Conservation hypotheses for vitality, energy and rakish energy; Elastic and inelastic impacts; Rigid body; Degrees of opportunity, Euler's hypothesis, rakish speed, precise energy, snapshots of idleness, hypotheses of parallel and opposite tomahawks, the condition of movement for revolution; Molecular turns (as inflexible bodies); Di and tri-nuclear atoms; Precessional movement; top, gyrator.

Mechanics of Continuous Media

Elasticity, Hooke's law and flexible constants of isotropic solids and their between connection; Streamline (Laminar) stream, thickness, Poiseuille's condition, Bernoulli's condition, Stokes' law and applications.

Special Relativit

Michelson-Morley test and its suggestions; Lorentz changes length compression, time expansion, the expansion of relativistic speeds, variation and Doppler impact, mass-vitality connection, basic applications to a rot procedure; Four-dimensional energy vector; Covariance of conditions of physics.

Waves and Optics

#1 Waves:Straightforward consonant movement, damped swaying, constrained wavering and reverberation; Beats; Stationary waves in a string; Pulses and wave bundles; Phase and gathering speeds; Reflection and Refraction from Huygens' rule.

#2 Interference:Impedance of light-Young's investigation, Newton's rings, obstruction by slight movies, Michelson interferometer; Multiple bar obstruction and Fabry-Perot interferometer.

#3 Geometrical Optics:Laws of reflection and refraction from Fermat's guideline; Matrix technique in paraxial optics-slight focal point equation, nodal planes, the arrangement of two flimsy focal points, chromatic and round abnormalities.

#4 Diffraction:Fraunhofer diffraction-single cut, twofold cut, diffraction grinding, settling power; Diffraction by a roundabout opening and the Airy example; Fresnel diffraction: half-period zones and zone plates, round gap.

#5 Polarization and Modern Optics:Generation and identification of straightly and circularly energized light; Double refraction, quarter-wave plate; Optical movement; Principles of fiber optics, lessening; Pulse scattering in step file and allegorical record filaments; Material scattering, single mode strands; Lasers-Einstein An and B coefficients; Ruby and He-Ne lasers; Characteristics of laser light-spatial and fleeting cognizance; Focusing of laser shafts; Three-level plan for laser activity; Holography and basic applications.

Electricity and Magnetism

#1 Electrostatics and Magnetostatics: Laplace and Poisson conditions in electrostatics and their applications; Energy of an arrangement of charges, multipole development of scalar potential; Method of pictures and its applications; Potential and field because of a dipole, power and torque on a dipole in an outside field; Dielectrics, polarization; Solutions to limit esteem issues directing and dielectric circles in a uniform electric field; Magnetic shell, consistently polarized circle; Ferromagnetic materials, hysteresis, vitality misfortune.

#2 Current Electricity:Kirchhoff's laws and their applications; Biot-Savart law, Ampere's law, Faraday's law, Lenz' law; Self-and shared inductances; Mean and r m s esteems in AC circuits; DC and AC circuits with R, L and C parts; Series and parallel resonances; Quality factor; Principle of transformer.

Electromagnetic Waves and Blackbody Radiatin

Relocation flow and Maxwell's conditions; Wave conditions in vacuum, Poynting hypothesis; Vector and scalar possibilities; Electromagnetic field tensor, covariance of Maxwell's conditions; Wave conditions in isotropic dielectrics, reflection and refraction at the limit of two dielectrics; Fresnel's relations; Total inward reflection; Normal and bizarre scattering; Rayleigh dissipating; Blackbody radiation and Planck's radiation law, StefanBoltzmann law, Wien's uprooting law and Rayleigh-Jeans' law.

Thermal and Statistical Physics

#1 Thermodynamics: Laws of thermodynamics, reversible and irreversible procedures, entropy; Isothermal, adiabatic, isobaric, isochoric procedures and entropy changes; Otto and Diesel motors, Gibbs' stage rule and compound potential; van der Waals condition of condition of a genuine gas, basic constants; Maxwell-Boltzman conveyance of atomic speeds, transport wonders, equipartition and virial hypotheses; Dulong-Petit, Einstein, and Debye's speculations of explicit warmth of solids; Maxwell relations and applications; Clausius-Clapeyron condition; Adiabatic demagnetisation, Joule-Kelvin impact and liquefaction of gases.

#2 Statistical Physics:Full scale and small scale states, measurable disseminations, Maxwell-Boltzmann, Bose-Einstein and Fermi-Dirac appropriations, applications to the particular warmth of gases and blackbody radiation; Concept of negative temperatures.

IUPSC Physics Syllabus for PAPER-II

Find the below-mentioned table, to check the syllabus of paper-II.

UPSC Mains Physics Syllabus

Paper-II Syllabus Topics

Quantum Mechanics

Wave-molecule duality; Schroedinger condition and desire esteems; Uncertainty guideline; Solutions of the one-dimensional Schroedinger condition for a free molecule (Gaussian wave-bundle), molecule in a container, molecule in a limited well, direct symphonious oscillator; Reflection and transmission by a stage potential and by a rectangular hindrance; Particle in a three dimensional box, the thickness of states, free electron hypothesis of metals; Angular energy; Hydrogen iota; Spin half particles, properties of Pauli turn frameworks.

Atomic and Molecular Physics

Harsh Gerlach try, electron turn, the fine structure of hydrogen iota; L-S coupling, J-J coupling; Spectroscopic documentation of nuclear states; Zeeman impact; FrankCondon standard and applications; Elementary hypothesis of rotational, vibratonal and electronic spectra of diatomic particles; Raman impact and sub-atomic structure; Laser Raman spectroscopy; Importance of impartial hydrogen iota, sub-atomic hydrogen and sub-atomic hydrogen particle in stargazing; Fluorescence and Phosphorescence; Elementary hypothesis and utilizations of NMR and EPR; Elementary thoughts regarding Lamb move and its noteworthiness.

Nuclear and Particle Physics

Fundamental atomic properties-size, restricting vitality, precise energy, equality, attractive minute; Semi-exact mass equation and applications, mass parabolas; Ground condition of deuteron, attractive minute and non-focal powers; Meson hypothesis of atomic powers; Salient highlights of atomic powers; Shell model of the core – victories and impediments; Violation of equality in beta rot; Gamma rot and interior change; Elementary thoughts regarding Mossbauer spectroscopy; Q-estimation of atomic responses; Nuclear parting and combination, vitality generation in stars; Nuclear reactors. Grouping of rudimentary particles and their communications; Conservation laws; Quark structure of hadrons; Field quanta of electroweak and solid connections; Elementary thoughts regarding unification of powers; Physics of neutrinos.

Solid State Physics, Devices and Electronics

Crystalline and nebulous structure of issue; Different precious stone frameworks, space gatherings; Methods of assurance of gem structure; X-beam diffraction, examining and transmission electron magnifying lens; Band hypothesis of solids – directors, protectors and semiconductors; Thermal properties of solids, explicit warmth, Debye hypothesis.

Physics optional for IAS exam requires focused approach and hard work. Therefore preparation should begin early. Candidates should solve as many questions from previous years' UPSC papers and mock test papers. This would enable them to score well in the UPSC exam.