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Physics - Atomic Physics

Practise 172 MHTCET previous year questions on Atomic Physics, compiled from papers spanning 2007 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 MHTCET tests.

Atomic Physics has been asked in 15 of the 17 years of MHTCET papers analysed (2007–2026), with 172 questions in all. 39% of them were easy, 56% moderate and 5% tough. Most of its questions came from 2026, with 29 questions that year. In the last three years (2024–2026) it had 78 questions across 59 papers, about 1.3 per paper.

The chapter's 3 topics are not weighted equally: Bohr's Atomic Model (105 questions, 61%), Atomic Spectrum (54 questions, 31%), and Atomic Structure (13 questions, 8%) have been asked the most. Bohr's Atomic Model has also led over the last five years, with 70 questions. Bohr's Atomic Model has produced the most tough questions (6).

  1. 1The angular momentum of an electron in Bohr's hydrogen atom having energy eV is ( = Planck's constant)20 Apr, 2026 (M)Bohr's Atomic Model
  2. 2An electron in the hydrogen atom jumps from energy state to the ground state. The wavelength so emitted illuminates a photosensitive materia20 Apr, 2026 (M)Atomic Spectrum
  3. 3Which of the following is an integral multiple of in Bohr's model of an hydrogen atom?20 Apr, 2026 (E)Bohr's Atomic Model
  4. 4The kinetic energy of the electron in an orbit of radius in hydrogen atom is proportional to ( = electronic charge)20 Apr, 2026 (E)Bohr's Atomic Model
  5. 5The shortest wavelength in the Balmer series of hydrogen atom is equal to the shortest wavelength in the Brackett series of a hydrogen like 19 Apr, 2026 (M)Atomic Spectrum
  6. 6The magnetic moment of electron due to orbital motion is proportional to ( = principal quantum number)19 Apr, 2026 (E)Bohr's Atomic Model
  7. 7The de-Broglie wavelength of an electron moving in the Bohr orbit of radius 'r' is19 Apr, 2026 (E)Bohr's Atomic Model
  8. 8If the ionisation energy for the hydrogen atom is eV, then the energy required to excite it from the ground state to the next higher state i19 Apr, 2026 (E)Bohr's Atomic Model
  9. 9The angular momentum of the electron in the third Bohr orbit of a hydrogen atom is ' ' so its angular momentum in the fourth Bohr orbit is18 Apr, 2026 (M)Bohr's Atomic Model
  10. 10The triply ionized beryllium ( ) has the same electron orbital radius as that of the ground state of hydrogen. Hence, the energy state of tr18 Apr, 2026 (M)Bohr's Atomic Model
  11. 11If the difference between Bohr radius and Bohr radius is given by Bohr radius, then the value of n is18 Apr, 2026 (E)Bohr's Atomic Model
  12. 12The orbital magnetic moment of a revolving electron around the nucleus varies with the principal quantum number ( ) as17 Apr, 2026 (M)Bohr's Atomic Model
  13. 13For wavelength of visible radiation of Hydrogen spectrum, Balmer gave an equation as , where m is the integer value. The value of x in terms17 Apr, 2026 (M)Atomic Spectrum
  14. 14In Bohr's atomic model, the energy of the electron is 'E' in the second orbit of hydrogen atom. So the energy of the electron in the third o17 Apr, 2026 (E)Bohr's Atomic Model
  15. 15Using Bohr's atomic model, the orbital period of electron in hydrogen atom in the orbit is ( =permittivity of free space, h=Planck's constan16 Apr, 2026 (M)Bohr's Atomic Model
  16. 16The force acting on the electron in hydrogen atom (Bohr's theory) is related to the principal quantum number n as16 Apr, 2026 (M)Bohr's Atomic Model
  17. 17An electron makes a transition from an excited state to the ground state of a hydrogen like atom. Out of the following statements which one 16 Apr, 2026 (E)Bohr's Atomic Model
  18. 18If 'E' and 'L' denote the magnitude of total energy and angular momentum of revolving electron in Bohr orbit then15 Apr, 2026 (M)Bohr's Atomic Model
  19. 19When the electron orbiting in hydrogen atom in its ground state moves to the third excited state, the de-Broglie wavelength associated with 15 Apr, 2026 (M)Bohr's Atomic Model
  20. 20In the hydrogen atom, radii of the first four Bohr orbits are related as15 Apr, 2026 (E)Bohr's Atomic Model
  21. 21The electron in hydrogen atom is initially in the second excited state. When it finally moves to ground state, the maximum number of spectra15 Apr, 2026 (E)Atomic Spectrum
  22. 22An electron is revolving in a circular orbit of radius 'r' in hydrogen atom. Using Bohr's theory, the angular momentum of the electron is (M13 Apr, 2026 (M)Bohr's Atomic Model
  23. 23The ratio of centripetal acceleration for an electron revolving in 3rd and 5th Bohr orbit of hydrogen atom is13 Apr, 2026 (M)Bohr's Atomic Model
  24. 24For hydrogen atom, and are the wavelengths corresponding to the transitions and respectively as shown in figure. The ratio of and is . The v13 Apr, 2026 (E)Atomic Spectrum
  25. 25The wavelength of the radiation emitted is when an electron jumps from the second excited state to the first excited state of hydrogen atom.13 Apr, 2026 (E)Atomic Spectrum
  26. 26The number of revolutions per second made by an electron in the first Bohr orbit of hydrogen atom is ( = Planck's constant, is the mass of e11 Apr, 2026 (M)Bohr's Atomic Model
  27. 27The kinetic energy of the electron in an orbit of radius in hydrogen atom is proportional to ( = electronic charge)11 Apr, 2026 (M)Bohr's Atomic Model
  28. 28In Bohr's theory of hydrogen atom, 'r' is the radius of the orbit, 'V' is the speed of electron and E is the total energy of the electron. O11 Apr, 2026 (E)Bohr's Atomic Model
  29. 29Bohr model is applied to a particle of mass 'm' and charge 'q' moving in a plane under the influence of a transverse magnetic field B. The e11 Apr, 2026 (E)Bohr's Atomic Model
  30. 30The ratio of the total energy of the orbit electron for the hydrogen atom to that of helium ion is05 May, 2025 (E)Bohr's Atomic Model
  31. 31If ' m ' is the mass of electron, ' V ' is its velocity, ' r ' is the radius of stationary circular orbit around a nucleus with charge 'Ze' 27 Apr, 2025 (E)Atomic Structure
  32. 32In Paschen series, wavelength of first line is ' ' and for Brackett series, wavelength of first line is ' ' then ratio is26 Apr, 2025 (M)Atomic Spectrum
  33. 33The ratio of energies of photons produced due to transition of electron of hydrogen atom from its (i) third to energy level and (ii) highest26 Apr, 2025 (M)Bohr's Atomic Model
  34. 34The magnetic moment of electron due to orbital motion is proportional to ( principal quantum number)26 Apr, 2025 (E)Bohr's Atomic Model
  35. 35The frequencies for series limit of Balmer and Paschen series are ' and ' ' respectively. If frequency of first line of Balmer series ' ' th26 Apr, 2025 (E)Atomic Spectrum
  36. 36If the electron in hydrogen atom jumps from third Bohr orbit to ground state directly and the difference between energies of the two states 25 Apr, 2025 (M)Bohr's Atomic Model
  37. 37Using Bohr's quantisation condition, what is the rotational energy in the second orbit for a diatomic molecule? ( moment of inertia of diato25 Apr, 2025 (E)Bohr's Atomic Model
  38. 38In hydrogen atom in its ground state, the first Bohr orbit has radius ' . When the atom is raised to one of its excited states, the electron25 Apr, 2025 (E)Bohr's Atomic Model
  39. 39In hydrogen atom, the energy of electron in first and third orbit is ' and ' respectively. If then the value of will be23 Apr, 2025 (M)Bohr's Atomic Model
  40. 40In hydrogen atom, transition from the state to results in ultraviolet radiation. Infrared radiation will be obtained in the transition23 Apr, 2025 (E)Atomic Spectrum
  41. 41Out of the following transitions in hydrogen atom, identify the transition which emits photons of highest frequency.22 Apr, 2025 (M)Bohr's Atomic Model
  42. 42When the electron orbiting in hydrogen atom goes from one orbit to another orbit (principal quantum number ), the de-Broglie wavelength asso22 Apr, 2025 (E)Atomic Structure
  43. 43Which of the following transitions in hydrogen atom emit photons of highest frequency? ( principle quantum number)21 Apr, 2025 (M)Bohr's Atomic Model
  44. 44Using Bohr's quantization condition, the rotational kinetic energy in the third orbit for a diatomic molecule is ( Planck's constant, moment21 Apr, 2025 (E)Atomic Structure
  45. 45An electron moves in Bohr orbit. The magnetic field at the centre is proportional to21 Apr, 2025 (E)Bohr's Atomic Model
  46. 46In hydrogen spectrum, the ratio of wavelengths of the last line of Lyman series and that of the last line of Balmer series is20 Apr, 2025 (M)Atomic Spectrum
  47. 47The ratio of angular momentum of an electron in orbit of hydrogen atom to the velocity of electron in orbit is proportional to20 Apr, 2025 (E)Bohr's Atomic Model
  48. 48In hydrogen atom spectrum, when an electron jumps from second excited state to the first excited state, the wavelength of radiation emitted 20 Apr, 2025 (E)Bohr's Atomic Model
  49. 49If ' ' and ' ' are the wavelengths of the first member of the Balmer and Paschen series, in hydorgen atom respectively, then the ratio of re19 Apr, 2025 (M)Atomic Spectrum
  50. 50The ratio of angular momentum of an electron to the magnetic dipole moment is ( ' m ' is mass of electron, ' e ' is charge on electron)19 Apr, 2025 (M)Bohr's Atomic Model

Frequently Asked Questions

1.How many questions are available for Atomic Physics?

This chapter includes 172 questions compiled from MHTCET papers spanning 2007 to 2026.

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

These are MHTCET 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 MHTCET Physics?

Atomic Physics has appeared in 15 of the 17 years of MHTCET papers covered here, with 172 questions across 102 papers - about 2 per paper it appears in.

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

Of the 172 questions analysed for this chapter, 39% are easy, 56% moderate and 5% tough. 2026 had the most, with 29 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 - 105 questions (61%)
  • Atomic Spectrum - 54 questions (31%)
  • Atomic Structure - 13 questions (8%)
  • Bohr's Atomic Model has produced the most tough questions (6).
6.Is Atomic Physics's weightage in MHTCET going up or down?

Across all 102 papers analysed, Atomic Physics has averaged about 1.7 questions per paper. In the last three years (2024–2026), that average has fallen, at about 1.3 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.