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Physics - Atomic Physics

Practise 49 NEET previous year questions on Atomic Physics, compiled from papers spanning 2003 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty NEET tests.

Atomic Physics has been asked in 23 of the 39 years of NEET papers analysed (1988–2026), with 49 questions in all. 57% of them were easy, 33% moderate and 10% tough. Most of its questions came from 2023, with 5 questions that year. In the last three years (2024–2026) it had 9 questions across 13 papers, about 0.7 per paper.

The chapter's 3 topics are not weighted equally: Bohr's Atomic Model (23 questions, 47%), Atomic Spectrum (21 questions, 43%), and Atomic Structure (5 questions, 10%) have been asked the most. Bohr's Atomic Model has also led over the last five years, with 9 questions. Atomic Spectrum has produced the most tough questions (3).

  1. 1In the first excited state of hydrogen atom, the energy of its electron is eV. The radial distance of the electron from the hydrogen nucleus2026 (Cancelled)Bohr's Atomic Model
  2. 2Consider that an electron is revolving in an excited state of Hydrogen atom with velocity ms . The radius of the orbit is m. The value of is2026 (Re-NEET)Bohr's Atomic Model
  3. 3In Geiger-Marsden experiment, the number of scattered -particles is plotted as a function of scattering angle . Which of the following optio2026 (Re-NEET)Atomic Structure
  4. 4A particle of mass is moving around the origin with a constant force pulling it towards the origin. If Bohr model is used to describe its mo2025Bohr's Atomic Model
  5. 5De-Broglie wavelength of an electron orbiting in the state of hydrogen atom is close to (Given Bohr radius )2025Bohr's Atomic Model
  6. 6Match List I with List II. {array}{|l|l|l|l|} & {|c|}{ {array}{c} List I \\(Spectral Lines of \ for \ from) {array}} & & {|c|}{ {array}{l} L2024Atomic Spectrum
  7. 7Given below are two statements: Statement I: Atoms are electrically neutral as they contain equal number of positive and negative charges. S2024Atomic Structure
  8. 8The spectral series which corresponds to the electronic transition from the levels to the level is2024 (Re-NEET)Atomic Spectrum
  9. 9Some energy levels of a molecule are shown in the figure with their wavelengths of transitions. Then:2024 (Re-NEET)Atomic Spectrum
  10. 10In hydrogen spectrum, the shortest wavelength in the Balmer series is . The shortest wavelength in the Brackett series is :2023 (All India)Atomic Spectrum
  11. 11The radius of inner most orbit of hydrogen atom is 5 . 3 10 - 11 m . What is the radius of third allowed orbit of hydrogen atom?2023 (All India)Bohr's Atomic Model
  12. 12The ground state energy of hydrogen atom is . The energy needed to ionize hydrogen atom from its second excited state will be2023 (Manipur)Bohr's Atomic Model
  13. 13The wavelength of Lyman series of hydrogen atom appears in2023 (Manipur)Atomic Spectrum
  14. 14The angular momentum of an electron moving in an orbit of hydrogen atom is . The energy in the same orbit is nearly2023 (Manipur)Bohr's Atomic Model
  15. 15Let T 1 and T 2 be the energy of an electron in the first and second excited states of hydrogen atom, respectively. According to the Bohr s 2022 (Phase 1)Bohr's Atomic Model
  16. 16Let be the radius of the second stationary orbit and be the radius of the fourth stationary orbit of an electron in Bohr's model. The ratio 2022 (Phase 2)Bohr's Atomic Model
  17. 17For which one of the following, Bohr model is not valid?2020 (Phase 1)Bohr's Atomic Model
  18. 18The total energy of an electron in the n th stationary orbit of the hydrogen atom can be obtained by2020 (Phase 2)Bohr's Atomic Model
  19. 19The total energy of an electron in an atom in an orbit is - 3.4 e V . Its kinetic and potential energies are, respectively,2019 (All India)Bohr's Atomic Model
  20. 20The radius of the first permitted Bohr orbit for the electron, in a hydrogen atom equals and its ground state energy equals . If the electro2019 (Odisha)Bohr's Atomic Model
  21. 21The ratio of kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom is2018Bohr's Atomic Model
  22. 22The ratio of wavelengths of the last line of the Balmer series and the last line of the Lyman series is_____.2017Atomic Spectrum
  23. 23Given the value of Rydberg constant is 10 7 m - 1 , the wave number of the last line of the Balmer series in hydrogen spectrum will be:2016 (Phase 1)Atomic Spectrum
  24. 24If an electron in a hydrogen atom jumps from the third orbit to the second orbit, it emits a photon of wavelength . When it jumps from the f2016 (Phase 2)Atomic Spectrum
  25. 25Consider third orbit of He + (helium), using non-relativistic approach, the speed of electron in this orbit will be given constant K =9 10 92015 (Phase 1)Bohr's Atomic Model
  26. 26In the spectrum of hydrogen, the ratio of the longest wavelength in the Lyman series to the longest wavelength in the Balmer series is:2015 (Phase 2)Atomic Spectrum
  27. 27Hydrogen atom in ground state is excited by a monochromatic radiation of = 975 . Number of spectral lines in the resulting spectrum emitted 2014Atomic Spectrum
  28. 28Ratio of longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is2013 (All India)Atomic Spectrum
  29. 29An electron in hydrogen atom makes a transition where are principle quantum numbers of the two states. Assuming Bohr's model to be valid, th2013 (Karnataka)Bohr's Atomic Model
  30. 30The transition from the state to in a hydrogen like atom results in ultraviolet radiation. Infrared radiation will be obtained in the transi2012 (Mains)Atomic Spectrum
  31. 31Electron in hydrogen atom first jumps from third excited state to second excited state and then from second excited to the first excited sta2012 (Screening)Atomic Spectrum
  32. 32An electron of a stationary hydrogen atom passes from the fifth energy level to the ground level. The velocity that the atom acquired as a r2012 (Screening)Atomic Spectrum
  33. 33Out of the following which one is not a possible energy for a photon to be emitted by hydrogen atom according to Bohr's atomic model?2011 (Mains)Atomic Spectrum
  34. 34The wavelength of the first line of Lyman series for hydrogen atom is equal to that of the second line of Balmer series for a hydrogen like 2011 (Screening)Atomic Spectrum
  35. 35The electron in the hydrogen atom jumps from excited state to its ground state and the photons thus emitted irradiate a photosensitive mater2010 (Mains)Atomic Spectrum
  36. 36The energy of a hydrogen atom in the ground state is . The energy of a ion in the first excited state will be2010 (Screening)Bohr's Atomic Model
  37. 37The ionization energy of the electron in the hydrogen atom in its grounds state is . The atoms are excited to higher energy levels to emit r2009 (Mains)Atomic Spectrum
  38. 38In a Rutherford scattering experiment when a projectile of charge and mass approaches a target nucleus of charge and mass , the distance of 2009 (Mains)Atomic Structure
  39. 39In a Rutherford scattering experiment when a projectile of charge and mass approaches a target nucleus of charge and mass , the distance of 2009 (Screening)Atomic Structure
  40. 40The ionization energy of the electron in the hydrogen atom in its ground state is . The atoms are excited to higher energy levels to emit ra2009 (Screening)Atomic Spectrum
  41. 41The ground state energy of hydrogen atom is . When its electron is in the first excited state, its excitation energy is2008 (Mains)Bohr's Atomic Model
  42. 42The ground state energy of hydrogen atom is . When its electron is in the first excited state, its excitation energy is2008 (Screening)Bohr's Atomic Model
  43. 43The total energy of electron in the ground state of hydrogen atom is . The kinetic energy of an electron in the first excited state is:2007Bohr's Atomic Model
  44. 44Ionization potential of hydrogen atom is . Hydrogen atoms in the ground state are excited by monochromatic radiation of photon energy . Acco2006Atomic Spectrum
  45. 45The total energy of an electron in the first excited state of hydrogen atom is about . Its kinetic energy in this state is:2005Bohr's Atomic Model
  46. 46Energy levels and of a certain action corresponding to increasing values of energy i.e. . If , and are wavelength of radiations correspondin2005Atomic Spectrum
  47. 47The Bohr model of atoms:2004Atomic Structure
  48. 48Energy of a hydrogen atom with principal quantum number is given by . The energy of a photon ejected when the electron jumps for state state2004Bohr's Atomic Model
  49. 49In which of the following systems will the radius of the first orbit be minimum?2003Bohr's Atomic Model

Frequently Asked Questions

1.How many questions are available for Atomic Physics?

This chapter includes 49 questions compiled from NEET papers spanning 2003 to 2026.

2.Are these questions only from NEET, or from other exams too?

These are NEET questions specifically for the Atomic Physics chapter. Questions from other exams like AIIMS or JIPMER are organised separately under their respective exam sections.

3.Is Atomic Physics an important chapter for NEET Physics?

Atomic Physics has appeared in 23 of the 25 years of NEET papers covered here, with 49 questions across 37 papers - about one per paper it appears in.

4.What is the difficulty level of Atomic Physics questions in NEET?

Of the 49 questions analysed for this chapter, 57% are easy, 33% moderate and 10% tough. 2023 had the most, with 5 questions.

5.Which topics in Atomic Physics should I focus on?

These topics have carried the most weightage in Atomic Physics:

  • Bohr's Atomic Model - 23 questions (47%)
  • Atomic Spectrum - 21 questions (43%)
  • Atomic Structure - 5 questions (10%)
  • Atomic Spectrum has produced the most tough questions (3).
6.Is Atomic Physics's weightage in NEET going up or down?

Across all 37 papers analysed, Atomic Physics has averaged about 1.3 questions per paper. In the last three years (2024–2026), that average has fallen, at about 0.7 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.