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Physics exam analytics & most important topics

Built from every previous year question in our library. Pick your exam to see which subjects and topics matter most.

50 Most Important Physics Topics — all five exams
Full PhysicsByAaryan study guide · 250 ranked topics · free with login
1425
Questions analysed
2015–2025
Years covered
12
Subjects
110
Topics

In CSIR NET Physics, General Aptitude carries the most weight (26.7% of questions), and the single most-asked topic is Mathematical Analysis.

Subject weightage

General Aptitude380 · 26.7%
Quantum Mechanics154 · 10.8%
Mathematical Physics154 · 10.8%
Classical Mechanics145 · 10.2%
Electronics128 · 9%
Electromagnetism126 · 8.8%
Statistical Mechanics108 · 7.6%
Atomic and Molecular Physics63 · 4.4%
Nuclear and Particle Physics59 · 4.1%
Solid State Physics55 · 3.9%
Thermodynamics32 · 2.2%
Optics21 · 1.5%

Question types

MCQ1425 · 100%

Questions per year

150
2015
150
2016
150
2017
150
2018
150
2019
75
2020
75
2021
75
2022
150
2023
150
2024
150
2025

Top 50 most important CSIR NET topics

  1. 1
    Mathematical Analysis
    General Aptitude · asked in 11 years · last 2025
    128
    8.98%
  2. 2
    Basic Physics
    General Aptitude · asked in 11 years · last 2025
    87
    6.11%
  3. 3
    Reasoning
    General Aptitude · asked in 11 years · last 2025
    81
    5.68%
  4. 4
    Geometry
    General Aptitude · asked in 11 years · last 2025
    56
    3.93%
  5. 5
    Basic Quantum Mechanics
    Quantum Mechanics · asked in 11 years · last 2025
    36
    2.53%
  6. 6
    Canonical Ensemble
    Statistical Mechanics · asked in 11 years · last 2025
    36
    2.53%
  7. 7
    Special theory of relativity
    Classical Mechanics · asked in 11 years · last 2025
    27
    1.89%
  8. 8
    Complex Analysis
    Mathematical Physics · asked in 10 years · last 2025
    26
    1.82%
  9. 9
    Data Analysis
    General Aptitude · asked in 9 years · last 2025
    25
    1.75%
  10. 10
    Lagrangian and Hamiltonian
    Classical Mechanics · asked in 11 years · last 2025
    25
    1.75%
  11. 11
    Electrostatics
    Electromagnetism · asked in 11 years · last 2025
    24
    1.68%
  12. 12
    Orbital angular Momentum and Hydrogen atom
    Quantum Mechanics · asked in 10 years · last 2025
    24
    1.68%
  13. 13
    Oscillations
    Classical Mechanics · asked in 11 years · last 2025
    23
    1.61%
  14. 14
    Pertubation theory
    Quantum Mechanics · asked in 11 years · last 2025
    23
    1.61%
  15. 15
    EM Waves
    Electromagnetism · asked in 10 years · last 2025
    21
    1.47%
  16. 16
    Magetostatics
    Electromagnetism · asked in 11 years · last 2025
    21
    1.47%
  17. 17
    Matrices and Linear Algebra
    Mathematical Physics · asked in 10 years · last 2025
    21
    1.47%
  18. 18
    Errors , curve fitting and data analysis
    Electronics · asked in 9 years · last 2025
    20
    1.4%
  19. 19
    OPAMP
    Electronics · asked in 10 years · last 2025
    20
    1.4%
  20. 20
    Basic Mechanics
    Classical Mechanics · asked in 7 years · last 2025
    19
    1.33%
  21. 21
    Central forces
    Classical Mechanics · asked in 9 years · last 2024
    19
    1.33%
  22. 22
    Instruments
    Electronics · asked in 10 years · last 2025
    19
    1.33%
  23. 23
    Particle Physics
    Nuclear and Particle Physics · asked in 10 years · last 2025
    19
    1.33%
  24. 24
    Quantum Statistical Mechanics
    Statistical Mechanics · asked in 9 years · last 2025
    19
    1.33%
  25. 25
    Probability
    Mathematical Physics · asked in 11 years · last 2025
    18
    1.26%
  26. 26
    Digital Electronics
    Electronics · asked in 11 years · last 2025
    16
    1.12%
  27. 27
    Numerical Methods
    Mathematical Physics · asked in 9 years · last 2024
    16
    1.12%
  28. 28
    Diodes
    Electronics · asked in 9 years · last 2025
    15
    1.05%
  29. 29
    Interference and diffraction
    Optics · asked in 9 years · last 2025
    15
    1.05%
  30. 30
    Random Walk/Brownian motion/Diffusion
    Statistical Mechanics · asked in 9 years · last 2025
    15
    1.05%
  31. 31
    Electrodynamics
    Electromagnetism · asked in 8 years · last 2025
    14
    0.98%
  32. 32
    Lasers
    Atomic and Molecular Physics · asked in 7 years · last 2025
    14
    0.98%
  33. 33
    Radioactivity
    Nuclear and Particle Physics · asked in 7 years · last 2024
    14
    0.98%
  34. 34
    Scattering theory
    Quantum Mechanics · asked in 8 years · last 2023
    14
    0.98%
  35. 35
    Molecular Physics
    Atomic and Molecular Physics · asked in 8 years · last 2025
    13
    0.91%
  36. 36
    Ordinary Differential Equations
    Mathematical Physics · asked in 9 years · last 2025
    13
    0.91%
  37. 37
    Potential Well
    Quantum Mechanics · asked in 8 years · last 2024
    13
    0.91%
  38. 38
    Spin Angular momentum
    Quantum Mechanics · asked in 7 years · last 2025
    13
    0.91%
  39. 39
    Tight binding model
    Solid State Physics · asked in 8 years · last 2025
    12
    0.84%
  40. 40
    Flip flops/Counters/Registers/microcontroller etc.
    Electronics · asked in 5 years · last 2020
    11
    0.77%
  41. 41
    Ising model
    Statistical Mechanics · asked in 8 years · last 2025
    11
    0.77%
  42. 42
    LS, JJ and other interactions
    Atomic and Molecular Physics · asked in 6 years · last 2024
    11
    0.77%
  43. 43
    Microcanonical Ensemble
    Statistical Mechanics · asked in 9 years · last 2025
    11
    0.77%
  44. 44
    Canonical transformations
    Classical Mechanics · asked in 7 years · last 2025
    10
    0.7%
  45. 45
    Crystallography
    Solid State Physics · asked in 7 years · last 2024
    10
    0.7%
  46. 46
    Laws of thermodynamics
    Thermodynamics · asked in 9 years · last 2025
    10
    0.7%
  47. 47
    Quantum Harmonic Oscillator
    Quantum Mechanics · asked in 6 years · last 2025
    10
    0.7%
  48. 48
    Basic Mathematics
    Mathematical Physics · asked in 8 years · last 2025
    9
    0.63%
  49. 49
    Bohar Model and h-atom model
    Atomic and Molecular Physics · asked in 7 years · last 2024
    9
    0.63%
  50. 50
    Kinetic theory of gases
    Thermodynamics · asked in 5 years · last 2025
    9
    0.63%