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Physics - Atomic Physics

Practise 75 AP EAMCET previous year questions on Atomic Physics, compiled from papers spanning 2006 to 2025. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty AP EAMCET tests.

Atomic Physics has been asked in 13 of the 24 years of AP EAMCET papers analysed (2001–2024), with 75 questions in all. 47% of them were easy, 40% moderate and 13% tough. Most of its questions came from 2024, with 11 questions that year. In the last three years (2022–2024) it had 30 questions across 28 papers, about 1.1 per paper.

The chapter's 4 topics are not weighted equally: Bohr's Atomic Model (39 questions, 52%), Atomic Spectrum (29 questions, 39%), and Atomic Structure (6 questions, 8%) have been asked the most. Bohr's Atomic Model has also led over the last five years, with 22 questions. Atomic Spectrum has produced the most tough questions (4).

  1. 1The ratio of the shortest wavelengths of Bracket and Balmer series of hydrogen atom is27 May, 2025 (M)Atomic Spectrum
  2. 2The ratio of the time periods of the revolution of the electrons in the second and third excited states of hydrogen atom is26 May, 2025 (E)Bohr's Atomic Model
  3. 3The ratio of energies of photons produced due to transition of an electron in hydrogen atom from second energy level to first energy level a24 May, 2025 (M)Bohr's Atomic Model
  4. 4Of the following, Bohr's atomic model is applicable to23 May, 2025 (M)Bohr's Atomic Model
  5. 5The ratio of the wavelengths of the spectral lines emitted due to transitions and orbits in the hydrogen atom is23 May, 2025 (E)Bohr's Atomic Model
  6. 6The difference between the frequencies of second and first Paschen lines of hydrogen atom is (R - Rydberg constant and c - speed of light in22 May, 2025 (M)Bohr's Atomic Model
  7. 7The ratio of the wavelengths of the first Lyman line and the second Balmer line of hydrogen atom is22 May, 2025 (E)Atomic Spectrum
  8. 8The difference between the frequencies of the first and second Lyman lines of hydrogen atom is (R - Rydberg constant and c - speed of light 21 May, 2025 (E)Bohr's Atomic Model
  9. 9Energy levels and of a certain atom corresponding to increasing values of energy i.e. . If , are the wavelengths of a photon corresponding t23 May, 2024 (M)Atomic Spectrum
  10. 10The ratio of minimum wave length of Balmer series to maximum wavelength in Brackett series in hydrogen spectrum is22 May, 2024 (M)Atomic Spectrum
  11. 11The principle quantum number ' ' corresponding to the exited state of ion, if on transition to the ground state two photons in succession wi22 May, 2024 (E)Atomic Spectrum
  12. 12Which physical quantity is measured in barn22 May, 2024 (E)Atomic Structure
  13. 13The ground state energy of hydrogen atom is -13.6 eV The potential energy of the electron in this state is21 May, 2024 (M)Bohr's Atomic Model
  14. 14The electrostatic potential energy of the electron in an orbit of hydrogen is -6.8 eV . The speed of the electron in this orbit is ( C is sp21 May, 2024 (E)Bohr's Atomic Model
  15. 15-meson of charge ' ', mass 208 me moves in a circular orbit around a heavy nucleus having charge . The quantum state ' ' for which the radiu20 May, 2024 (M)Bohr's Atomic Model
  16. 16Inner shell electrons in atoms moving from one energy level to another lower energy level produce20 May, 2024 (E)Atomic Spectrum
  17. 17The speed of the electron is a hydrogen atom in the level is Plank constant20 May, 2024 (E)Bohr's Atomic Model
  18. 18A hydrogen atom falls from higher energy orbit to first energy orbit ( ). The energy released is equal to 12.75 ev . The orbit is19 May, 2024 (E)Bohr's Atomic Model
  19. 19If the bonding energy of the electron in a hydrogen atom is 13.6 eV , then energy required to remove electron from first excited state of is18 May, 2024 (M)Bohr's Atomic Model
  20. 20The minimum excitation energy of an electron revolving in the first orbit of hydrogen is19 May, 2023 (M)Bohr's Atomic Model
  21. 21In hydrogen atom, if an electron in the orbit with principal quantum number ' ' jumps to the first excited state, the wavelength of the emit18 May, 2023 (E)Atomic Spectrum
  22. 22The total energy of an electron in an orbit of hydrogen atom is E. The potential energy of the electron in the same orbit is17 May, 2023 (M)Bohr's Atomic Model
  23. 23In hydrogen spectrum, the shortest wavelengths of Lyman and Balmer series are and respectively. The Rydberg constant of hydrogen is17 May, 2023 (E)Atomic Spectrum
  24. 24The distance of closest approach of an alpha particle to a nucleus when the alpha particle moves towards the nucleus with linear momentum is16 May, 2023 (M)Atomic Structure
  25. 25An alpha particle of energy is moving towards a nucleus of atomic number . The distance of closest approach of the alpha particle to the nuc16 May, 2023 (E)Atomic Structure
  26. 26The transition of an electron in hydrogen atom that emits a photon whose wavelength lies in the ultraviolet region of the electromagnetic sp15 May, 2023 (M)Atomic Spectrum
  27. 27The centripetal acceleration ' ' of an electron in an orbit of hydrogen and the principal quantum number ' ' of the orbit are related by15 May, 2023 (E)Bohr's Atomic Model
  28. 28The radius of the nucleus of an atom whose mass number is 125 is15 May, 2023 (E)Bohr's Atomic Model
  29. 29As the quantum number increases, the difference in energy between consecutive energy levels08 Jul, 2022 (M)Bohr's Atomic Model
  30. 30The following parameter is same for all hydrogen like atoms and ions in their ground state.08 Jul, 2022 (E)Atomic Spectrum
  31. 31A light from Paschen series of hydrogen atom is able to eject photoelectrons from a metal. Then the work function of the metal is07 Jul, 2022 (M)Atomic Spectrum
  32. 32The shortest wavelength in the Paschen series of the Hydrogen spectrum is Rydberg constant of hydrogen .06 Jul, 2022 (M)Atomic Spectrum
  33. 33Statement (A) As one considers orbits with higher values of in hydrogen atom, the electric potential energy of the atom increases. Statement06 Jul, 2022 (E)Thomson Atomic Model
  34. 34An electron in the hydrogen atom excites from 2 nd orbit to 4 th orbit then the change in angular momentum of the electron is (Planck's cons05 Jul, 2022 (M)Atomic Structure
  35. 35The ratio of radii of and Bohr's orbit in a hydrogen atom is05 Jul, 2022 (E)Bohr's Atomic Model
  36. 36The frequency of the light emitted when an electron comes down from to level in hydrogen atom is times of the following transition of the Li05 Jul, 2022 (E)Atomic Spectrum
  37. 37Energy of a stationary electron in the hydrogen atom is E = - 13 . 6 n 2 eV then the energies required to excite the electron in hydrogen at04 Jul, 2022 (M)Bohr's Atomic Model
  38. 38A hydrogen atom at the grotund level absorbs a photon and is excited to n = 4 level. The potential energy of the electron in the excited sta04 Jul, 2022 (E)Bohr's Atomic Model
  39. 39Assertion (A) The impact parameter for -particles by is zero. Reason (R) Zero impact parameter means that the -particles tend to hit the cen25 Aug, 2021 (M)Atomic Structure
  40. 40The ratio of speed of electrons in the first excited state of hydrogen atom to the speed of light in vacuum is [Given, Planck's constant and25 Aug, 2021 (E)Atomic Spectrum
  41. 41When electron in hydrogen atom jumps to the inner most orbit, the radiation emitted belongs to which one of the following series?24 Aug, 2021 (M)Atomic Spectrum
  42. 42Which of the following is the property of Rydberg constant?24 Aug, 2021 (E)Atomic Spectrum
  43. 43The diagram shows different transitions across the energy levels for an electron in a certain atom. Among these, which transition represents23 Aug, 2021 (M)Bohr's Atomic Model
  44. 44Ionisation potential of hydrogen atom is . When hydrogen atoms in ground state are excited by a supply of , then the number of spectral line23 Aug, 2021 (E)Atomic Spectrum
  45. 45The angular momentum of the orbital electron is integral multiple of:20 Aug, 2021 (M)Atomic Structure
  46. 46The wavelength of the first spectral line of the Lyman series of hydrogen spectrum is20 Aug, 2021 (E)Atomic Spectrum
  47. 47Potential energy between a proton and an electron is given by U = K e 2 3 R 3 , then radius of Bohr s orbit can be given by19 Aug, 2021 (M)Bohr's Atomic Model
  48. 48The ionization potential of hydrogen atom is 13 . 6 V . How much energy need to be supplied to ionize the hydrogen atom in the first excited19 Aug, 2021 (E)Atomic Spectrum
  49. 49The wavelength of the first line of Balmer series of hydrogen atom is , what will be the wavelength of the same line in doubly ionized lithi07 Oct, 2020 (Special)Atomic Spectrum
  50. 50Minimum excitation potential of Bohr s first orbit of Hydrogen atom is_____.23 Sep, 2020 (M)Bohr's Atomic Model

Frequently Asked Questions

1.How many questions are available for Atomic Physics?

This chapter includes 75 questions compiled from AP EAMCET papers spanning 2006 to 2025.

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

These are AP EAMCET questions specifically for the Atomic Physics chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Atomic Physics an important chapter for AP EAMCET Physics?

Atomic Physics has appeared in 14 of the 25 years of AP EAMCET papers covered here, with 75 questions across 71 papers - about one per paper it appears in.

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

Of the 75 questions analysed for this chapter, 47% are easy, 40% moderate and 13% tough. 2024 had the most, with 11 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 - 39 questions (52%)
  • Atomic Spectrum - 29 questions (39%)
  • Atomic Structure - 6 questions (8%)
  • Atomic Spectrum has produced the most tough questions (4).
6.Is Atomic Physics's weightage in AP EAMCET going up or down?

Across all 71 papers analysed, Atomic Physics has averaged about 1.1 questions per paper. In the last three years (2022–2024), that average has stayed about the same, at about 1.1 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.