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Physics - Atomic Physics

Practise 201 NEET NTA questions on Atomic Physics. Each question shows a quick preview so you can jump straight to the topic you want to revise.

Atomic Physics has been asked in 0 of the 38 years of NEET NTA papers analysed (1988–2025), with 201 questions in all. 100% of them were easy, 0% moderate and 0% tough. Most of its questions came from 2025, with 0 questions that year. In the last three years (2023–2025) it had 0 questions across 6 papers, about 0 per paper.

All of the chapter's questions come from a single topic, Uncategorized.

  1. 1The ratio of the maximum wavelength of the Lyman series in hydrogen spectrum to the maximum wavelength in the Paschen series is
  2. 2K α wavelength emitted by an atom of atomic number Z = 11 is λ . Find the atomic number for an atom that emits K α radiation with wavelength
  3. 3The binding energy per nucleon of deuteron 1 2 H and helium nucleus 2 4 He is 1.1 Me V and 7 Me V respectively. If two deuteron nuclei react
  4. 4We wish to observe an object which is 2.5 Å in size. The minimum energy photon that can be used is
  5. 5The ionisation energy of 10 time ionised sodium atom is
  6. 6The graph given below, shows the variation of f vs z for characteristics X- rays. Lines 1,2,3 and 4 shown in the graph corresponds to any on
  7. 7The wavelength of light emitted from the second orbit to the first orbit in a hydrogen atom is
  8. 8The ratio of the maximum wavelength of the Lyman series in hydrogen spectrum to the maximum wavelength in the Paschen series is
  9. 91 amu (atomic mass unit) mass is equal to energy of
  10. 10An electron collides with a hydrogen atom in its ground state and excites it to n = 3 . The energy given to hydrogen atom in this inelastic
  11. 11Energy E of a hydrogen atom with principal quantum number n is given by E = - 13.6 n 2 e V . The energy of a photon ejected when the electro
  12. 12An H -atom in the ground state is excited by monochromatic radiation of photon energy 13.056 eV . The number of emission lines will be (give
  13. 13An electron makes a transition from an excited state to the ground state of a hydrogen-like atom. Then
  14. 14The electron in a hydrogen atom makes a transition n 1 → n 2 where n 1 and n 2 are the principal quantum numbers of the two states. Assume t
  15. 15The voltage applied to the Coolidge X-ray tube is increased by 25 % . As a result, the short wave limit of continuous X-ray spectrum shifts
  16. 16Tritium with a half-life of 12.5 years undergoing β -decay. What fraction of a sample of pure tritium will remain undecayed after 25 years?
  17. 17Ionization energy of H e + ion at minimum energy position is
  18. 18In Uranium Z = 92 , the K absorption edge is 0 .107 and the K line is 0 .126 . The wavelength of the L absorption edge is
  19. 19A proton of mass m and charge + e is moving in a circular orbit in a magnetic field with energy 1 MeV . What should be the energy of α - p a
  20. 20If elements with a principal quantum number n 4 were not allowed in nature, the number of possible elements would be
  21. 21Magnetic moment due to the motion of the electron in n t h energy state of hydrogen atom is proportional to
  22. 22The acceleration of electron in the first orbit of hydrogen atom is (where the symbols have their usual meanings)
  23. 23A stationary hydrogen atom in the first excited state emits a photon. If the mass of the hydrogen atom is m and its ionization energy is E ,
  24. 24The ground state energy of H -atom is 13 . 6 eV . The energy needed to ionize H -atom from its second excited state is
  25. 25When an electron revolves around the nucleus, then the ratio of magnetic moment to angular momentum is
  26. 26An electron accelerated under a potential difference of V volt has a certain wavelength λ . It is known that the mass of a proton is about 1
  27. 27A hydrogen atom is in fifth excited state. When the electron jumps to ground state, the velocity of recoiling hydrogen atom is
  28. 28According to the Bohr model, what determines the shortest wavelength in a given series of wavelengths emitted by the atom?
  29. 29The ratio between total acceleration of the electron in singly ionized helium atom and hydrogen atom (both in ground state) is
  30. 30The period of revolution of an electron in the ground state of a hydrogen atom is T . The period of revolution of the electron in the first
  31. 31De Broglie wavelength of 0.05 e V thermal neutron is
  32. 32A hydrogen atom in ground state absorbs 10.2 e V of energy. The orbital angular momentum of the electron is increased by
  33. 33The ionization energy of H e + ion at minimum position is
  34. 34Ionization energy of H e + ion at minimum energy position is
  35. 35The distance of closest approach of an -particle fired towards a nucleus with momentum p , is r . What will the distance of closest approach
  36. 36If the radius of the first orbit of the hydrogen atom is 0.53 A ∘ , then the de-Broglie wavelength of the electron in the ground state of hy
  37. 37Electron in hydrogen atom first jumps from third excited state to second excited state and then from second excited to the first excited sta
  38. 38An electron with kinetic energy 10 eV is incident on a hydrogen atom in its ground state. The collision
  39. 39The radius of hydrogen atom in its ground state is 5 . 3 10 - 11 m . After collision with an electron it is found to have a radius of 21.2 1
  40. 40If the radius of first Bohr's orbit of hydrogen is x , then the de-Broglie wavelength of the electron in its 3 rd orbit is
  41. 41In an electron gun, the electrons are accelerated by a potential V . If e is the charge and m is the mass of an electron, then the maximum v
  42. 42An X-ray tube produces a continuous spectrum of radiation with its shortest wavelength of 45 × 10 - 2 Å . The maximum energy of a photon in
  43. 43After absorbing a slowly moving neutron of mass m N (momentum ~ 0 ); a nucleus of mass M breaks into two nuclei of masses m 1 and 5 m 1 ( 6
  44. 44The ratio of the wavelengths for 2 → 1 transition in L i 2 + , He + and H is
  45. 45In the hydrogen atom, the electron is moving around the nucleus with velocity 2.18 × 10 6 m s - 1 in an orbit of radius 0.528 A ∘ . The acce
  46. 46The angular momentum of an electron in hydrogen atom is h π . The kinetic energy of the electron is
  47. 47Assuming the mass of the earth as 6.64 × 10 24 kg and the average mass of the atoms that make up the earth as 40 u (atomic mass unit), the n
  48. 48The number of revolutions done by an electron in one second in the first orbit of a hydrogen atom is
  49. 49The shortest wavelength of X-rays emitted from an X-ray tube depends on
  50. 50The total energy of an electron in the first excited state of hydrogen is about - 3.4 e V . Its kinetic energy in this state is

Frequently Asked Questions

1.How many questions are available for Atomic Physics?

This chapter includes 201 NEET NTA questions.

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

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

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

Of the 201 questions analysed for this chapter, 100% are easy, 0% moderate and 0% tough. 2025 had the most, with 0 questions.

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

All of this chapter's questions come from a single topic: Uncategorized.