GATE 2021 Physics Exam New Syllabus, Pattern, Marking Scheme, GATE Physics Exam Date

GATE 2021 Physics Exam – Here we will discuss in complete details about GATE 2021 Physics exam. We will discuss about GATE 2021 Physics syllabus and exam pattern.

GATE is conducted jointly by the Indian Institute of Science (IISc), Bangalore and the seven IIT’s (IIT Bombay, Kanpur, Delhi, Guwahati, Madras, Roorkee and Kharagpur).

Qualifying in GATE is a mandatory for admission and/or financial assistance to:

  • Doctoral programs and Master’s programs in Engineering/Technology/Architecture
  • PhD in relevant discipline of science, in institutions that are supported by the MHRD and other Government agencies.
  • Even in some institutions and colleges, which admit students without MHRD scholarship/assistantship, qualifying in GATE is a mandatory.
  • Further, many PSUs (Public Sector Undertakings) use GATE score in their recruitment process.

Latest – GATE 2021 Admit Card is available now

GATE Physics 2021 Exam Schedule

GATE 2021 Physics Exam Date – 06 Feb 2021

GATE 2021 Physics Exam Timing – 15:00 to 18:00 hrs (Afternoon Session)

Eligibility for GATE 2021 Exam

A candidate who is currently studying in the 3rd or higher years of any undergraduate degree program OR has already completed any government approved degree program in Engineering / Technology / Architecture / Science / Commerce / Arts is eligible for appearing in the GATE 2021 exam.

Age Limit: There is no age limit specified for the candidates.

Scheme of GATE 2021 Physics Exam

GATE exam will be in ONLINE Computer Based Test (CBT) mode where the candidates will be shown the questions on a computer screen. GATE exam will be of 3 hours and there will be 65 questions of total 100 marks.

During the examination a Virtual Scientific Calculator will be available on the computer screen.. Wristwatches, Personal, mobile phones, calculators or any other electronic devices are NOT allowed in the exam hall.

For rough work scribble pads will be provided to the candidates.

Pattern of GATE 2021 Physics Exam

There will be two section containing 65 questions carrying a total of 100 marks.

The General Aptitude section there will be 10 questions carrying a total of 15 marks. These questions will be on General Aptitude (GA), which is intended to test the Analytical Skills and Language. This will carry 15% of total marks

85% of the total marks are devoted to the subject paper containing 25 questions carrying 1-mark each (sub-total 25 marks) and 30 questions carrying 2-marks each (sub-total 60 marks) consisting of MCQ, MSQ and NAT Questions.  There will be 55 questions carrying a total of 85 marks from the subject.

GATE 2021 Physics Exam would contain three types of questions

  • Multiple Choice Questions (MCQ) – these questions carry or marks each. These questions will have a choice of four answers, out of which the candidate has to select (mark), the correct answer.
    • Negative Marking for Wrong Answers:
      • For 1-mark MCQ, Negative Marking for Wrong Answers is 1/3 mark.
      • For 2-mark MCQ, Negative Marking for Wrong Answers is 2/3 mark.
  • Multiple Select Questions (MSQ) carrying 1 or 2 marks each in all the papers and sections. These questions are objective in nature, and each will have choice of four answers, out of which ONE or MORE than ONE choice(s) are correct.
    • Negative Marking for Wrong Answers
      • There is NO negative marking for a wrong answer in MSQ questions. However, there is NO partial credit for choosing partially correct combinations of choices or any single wrong choice.
  • Numerical Answer Type (NAT) Questions- these questions carry or marks each. The answer is a signed real number for these questions, which needs to be entered by using the virtual numeric keypad on the monitor (computer’s keyboard will be disabled).The answer can be an integer only such as 10 or -10. The answer may be in decimals as 10.1 or 10.01 or -10.001. There will be instruction in question up to which decimal places; the candidates need to make an answer. Appropriate range will be considered while checking the numerical answer type questions so that the candidate is not penalized due to round-off errors. Wherever required and possible, it is better to give NAT answer up to three decimal places.
    • Negative Marking for Wrong Answers
      • For a wrong answer in NAT questions there is NO negative marking.

GATE Physics 2021 Syllabus

Section 1: Mathematical Physics

Vector calculus: linear vector space: basis, orthogonality and completeness; matrices; similarity transformations, diagonalization, eigenvalues and eigenvectors; linear differential equations: second order linear differential equations and solutions involving special functions; complex analysis: Cauchy-Riemann conditions, Cauchy’s theorem, singularities, residue theorem and applications; Laplace transform, Fourier analysis; elementary ideas about tensors: covariant and contravariant tensors.

Section 2: Classical Mechanics

Lagrangian formulation: D’Alembert’s principle, Euler-Lagrange equation, Hamilton’s principle, calculus of variations; symmetry and conservation laws; central force motion: Kepler problem and Rutherford scattering; small oscillations: coupled oscillations and normal modes; rigid body dynamics: inertia tensor, orthogonal transformations, Euler angles, Torque free motion of a symmetric top; Hamiltonian and Hamilton’s equations of motion; Liouville’s theorem; canonical transformations: action-angle variables, Poisson brackets, Hamilton-Jacobi equation.

Special theory of relativity: Lorentz transformations, relativistic kinematics, mass-energy equivalence.

Section 3: Electromagnetic Theory

Solutions of electrostatic and magnetostatic problems including boundary value problems; method of images; separation of variables; dielectrics and conductors; magnetic materials; multipole expansion; Maxwell’s equations; scalar and vector potentials; Coulomb and Lorentz gauges; electromagnetic waves in free space, non-conducting and conducting media; reflection and transmission at normal and oblique incidences; polarization of electromagnetic waves; Poynting vector, Poynting theorem, energy and momentum of electromagnetic waves; radiation from a moving charge.

Section 4: Quantum Mechanics

Postulates of quantum mechanics; uncertainty principle; Schrodinger equation; Dirac Bra-Ket notation, linear vectors and operators in Hilbert space; one dimensional potentials: step potential, finite rectangular well, tunneling from a potential barrier, particle in a box, harmonic oscillator; two and three dimensional systems: concept of degeneracy; hydrogen atom; angular momentum and spin; addition of angular momenta; variational method and WKB approximation, time independent perturbation theory; elementary scattering theory, Born approximation; symmetries in quantum mechanical systems.

Section 5: Thermodynamics and Statistical Physics

Laws of thermodynamics; macrostates and microstates; phase space; ensembles; partition function, free energy, calculation of thermodynamic quantities; classical and quantum statistics; degenerate Fermi gas; black body radiation and Planck’s distribution law; Bose-Einstein condensation; first and second order phase transitions, phase equilibria, critical point.

Section 6: Atomic and Molecular Physics

Spectra of one-and many-electron atoms; spin-orbit interaction: LS and jj couplings; fine and hyperfine structures; Zeeman and Stark effects; electric dipole transitions and selection rules; rotational and vibrational spectra of diatomic molecules; electronic transitions in diatomic molecules, Franck-Condon principle; Raman effect; EPR, NMR, ESR, X-ray spectra; lasers: Einstein coefficients, population inversion, two and three level systems.

Section 7: Solid State Physics

Elements of crystallography; diffraction methods for structure determination; bonding in solids; lattice vibrations and thermal properties of solids; free electron theory; band theory of solids: nearly free electron and tight binding models; metals, semiconductors and insulators; conductivity, mobility and effective mass; Optical properties of solids; Kramer’s-Kronig relation, intra- and inter-band transitions; dielectric properties of solid; dielectric function, polarizability, ferroelectricity; magnetic properties of solids; dia, para, ferro, antiferro and ferri-magnetism, domains and magnetic anisotropy; superconductivity: Type-I and Type II superconductors, Meissner effect, London equation, BCS Theory, flux quantization.

Section 8: Electronics

Semiconductors in equilibrium: electron and hole statistics in intrinsic and extrinsic semiconductors; metal-semiconductor junctions; Ohmic and rectifying contacts; PN diodes, bipolar junction transistors, field effect transistors; negative and positive feedback circuits; oscillators, operational amplifiers, active filters; basics of digital logic circuits, combinational and sequential circuits, flip-flops, timers, counters, registers, A/D and D/A conversion.

Section 9: Nuclear and Particle Physics

Nuclear radii and charge distributions, nuclear binding energy, electric and magnetic moments; semi-empirical mass formula; nuclear models; liquid drop model, nuclear shell model; nuclear force and two nucleon problem; alpha decay, beta-decay, electromagnetic transitions in nuclei; Rutherford scattering, nuclear reactions, conservation laws; fission and fusion; particle accelerators and detectors; elementary particles; photons, baryons, mesons and leptons; quark model; conservation laws, isospin symmetry, charge conjugation, parity and time-reversal invariance.

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