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Physics - Atomic Physics

Practise 48 TS 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 TS EAMCET tests.

Atomic Physics has been asked in 13 of the 24 years of TS EAMCET papers analysed (2001–2024), with 48 questions in all. 50% of them were easy, 42% moderate and 8% tough. Most of its questions came from 2020, with 8 questions that year. In the last three years (2022–2024) it had 16 questions across 17 papers, about 0.9 per paper.

The chapter's 3 topics are not weighted equally: Atomic Spectrum (26 questions, 54%), Bohr's Atomic Model (20 questions, 42%), and Atomic Structure (2 questions, 4%) have been asked the most. Atomic Spectrum has also led over the last five years, with 14 questions. Atomic Spectrum has produced the most tough questions (2).

  1. 1If the total energy of an electron in an orbit is positive, then04 May, 2025 (M)Bohr's Atomic Model
  2. 2The maximum wavelength of incident radiation required to ionize a hydrogen atom in its ground state is nearly04 May, 2025 (E)Bohr's Atomic Model
  3. 3The ratio of wavelengths of second line in Balmer series and the first line in Lyman series of hydrogen atom is03 May, 2025 (M)Atomic Spectrum
  4. 4If the difference in the frequencies of the first and second lines of Lyman series of hydrogen atom is , then the difference in frequencies 02 May, 2025 (M)Atomic Spectrum
  5. 5The ratio of the kinetic energies of the electrons in the third and fourth excited states of hydrogen atom is02 May, 2025 (E)Bohr's Atomic Model
  6. 6The ratio of the centripetal accelerations of the electron in two successive orbits of hydrogen is . Due to a transition between these two s11 May, 2024 (M)Atomic Structure
  7. 7The ratio of the centripetal accelerations of the electron in two successive orbits of hydrogen is . Due to a transition between these two s10 May, 2024 (M)Atomic Spectrum
  8. 8The ground state energy of hydrogen atom is -13.6 eV . The potential energy of the electron in the first excited state of hydrogen is10 May, 2024 (E)Bohr's Atomic Model
  9. 9At room temperature, gaseous hydrogen is bombarded with a beam of electrons of 13.6 eV energy. The series to which the emitted spectral line09 May, 2024 (M)Atomic Spectrum
  10. 10The ratio of the wavelengths of radiation emitted when an electron in the hydrogen atom jumps from 4th orbit to 2 nd orbit and from 3 rd orb09 May, 2024 (E)Atomic Spectrum
  11. 11In a hypothetical Bohr hydrogen atom, if the mass of the electron is doubled then the energy of the electron in the first orbit is14 May, 2023 (M)Bohr's Atomic Model
  12. 12The ratio of longest wavelengths of the spectral lines in the Lyman and Balmer series of hydrogen spectrum is14 May, 2023 (E)Atomic Spectrum
  13. 13In hydrogen spectrum, the shortest and longest wavelengths of Balmer series are and respectively. The Rydberg constant of hydrogen is13 May, 2023 (M)Atomic Spectrum
  14. 14If an electron is moving in the orbit of the hydrogen atom then the angular momentum of the electron in SI units is12 May, 2023 (M)Bohr's Atomic Model
  15. 15The ratio of the energies of the electron in the hydrogen atom in the first and second excited states is12 May, 2023 (E)Bohr's Atomic Model
  16. 16The energy of an electron in the fourth excited state of the hydrogen atom is20 Jul, 2022 (M)Bohr's Atomic Model
  17. 17The difference in the wavelength between the maximum and minimum of Balmer series [Use ]19 Jul, 2022 (M)Atomic Spectrum
  18. 18The radius and mass number of nucleus ' 1 ' is and respectively. The radius and mass number of nucleus ' 2 ' is and respectively. If is larg19 Jul, 2022 (M)Bohr's Atomic Model
  19. 19Considering the Bohr's model of hydrogen atom, the ratio of velocities of electrons orbiting in the orbit to that in the orbit is19 Jul, 2022 (E)Bohr's Atomic Model
  20. 20The light emitted in the transition n = 3 to n = 2 (where n is the principal quantum number of the state) in hydrogen is called H -light. Fi18 Jul, 2022 (M)Atomic Spectrum
  21. 21If the series limit frequency of Balmer series is B , then the series limit frequency of the Brackett series is18 Jul, 2022 (E)Atomic Spectrum
  22. 22A monochromatic radiation of wavelength is incident on a hydrogen sample in ground state. The sample subsequently emits radiation of six dif06 Aug, 2021 (M)Atomic Spectrum
  23. 23Find the radius of ions in its ground state assuming Bohr's model to be valid .06 Aug, 2021 (M)Bohr's Atomic Model
  24. 24In hydrogen atom spectra, if the ratio of wavelengths corresponding to the first of Lyman series and the first line of Balmer series is , th06 Aug, 2021 (E)Atomic Spectrum
  25. 25Blue light travelling in a vacuum has a wavelength of 450 nm . It enters a medium whose refractive index is 1 . 5 . What is its frequency in05 Aug, 2021 (M)Atomic Spectrum
  26. 26A light bulb of power 100 W is placed at the centre of a hollow sphere of radius 10 cm . If the 66 % of the energy is converted into light, 05 Aug, 2021 (E)Atomic Spectrum
  27. 27For an E M Wave, the electric and magnetic fields are 300 V m - 1 and 7 . 9 A m - 1 respectively. The maximum rate of energy flow is,04 Aug, 2021 (M)Bohr's Atomic Model
  28. 28The shortest wavelength in Lyman series is . Then, the longest wavelength in the series must be14 Sep, 2020 (M)Atomic Spectrum
  29. 29If the first line in the Lyman series has wavelength , then the first line in Balmer series has the wavelength14 Sep, 2020 (E)Atomic Spectrum
  30. 30In the Bohr model an electron of mass moves in a circular orbit around the proton. Considering the orbiting electron to be a circular curren11 Sep, 2020 (M)Bohr's Atomic Model
  31. 31The ratio of maximum to minimum wavelength in Balmer series of an hydrogenic atom is10 Sep, 2020 (M)Atomic Spectrum
  32. 32In atomic scale the weakest force in nature is10 Sep, 2020 (E)Atomic Structure
  33. 33The wavelength of a spectral line emitted by hydrogen atom in the Balmer series is ( is Rydberg constant). What is the value of the principa10 Sep, 2020 (E)Atomic Spectrum
  34. 34The phase difference between the following two waves y 2 and y 1 is: y 1 = a sin t - k x y 2 = b cos t - k x + 309 Sep, 2020 (M)Atomic Spectrum
  35. 35In hydrogen spectrum, if the shortest wavelength in Balmer series is , the shortest wavelength in Brackett series is09 Sep, 2020 (E)Atomic Spectrum
  36. 36Monochromatic radiation is incident on hydrogen sample which is in ground state. If the hydrogen atoms emit radiation of ten different wavel06 May, 2019 (M)Bohr's Atomic Model
  37. 37Let and be the longest wavelengths observed in the Paschen and Lyman series respectively. Choose the correct option04 May, 2019 (M)Atomic Spectrum
  38. 38A hydrogen sample is prepared in a particular excited state of quantum number, . The ground state energy of hydrogen atom is . The photons o04 May, 2019 (E)Atomic Spectrum
  39. 39The collision of an electron with kinetic energy and a hydrogen atom in its ground state can be described as03 May, 2019 (M)Bohr's Atomic Model
  40. 40In a hydrogen sample, if the atoms are excited to states with principal quantum number 20 , then the number of different wavelengths which m07 May, 2018 (M)Bohr's Atomic Model
  41. 41Consider an electron revolving in a circular orbit of hydrogen atom, whose quantum number is . The velocity of the electron in that orbit is05 May, 2018 (M)Bohr's Atomic Model
  42. 42The frequency of light emitted, when the electron makes transition from the level of principle quantum number to the level with is (Take, th04 May, 2018 (E)Atomic Spectrum
  43. 43An electron collides with a hydrogen atom in its grownd state and excites it to state. The energy given to the hydrogen atom in this inelast2017Bohr's Atomic Model
  44. 44If the first line of Lyman series has a wavelength , the first line of Balmer series is approximately2016Bohr's Atomic Model
  45. 45The following statements are given about hydrogen atom. A. The wavelengths of the spectral lines of Lyman series are greater than the wavele2015Atomic Spectrum
  46. 46The radius of the first orbit of hydrogen is , and the energy in the ground state is - . Considering a -particle with a mass revolving round2014Bohr's Atomic Model
  47. 47Match the following2007Atomic Spectrum
  48. 48Match the appropriate pairs from Lists I and II :2006Atomic Spectrum

Frequently Asked Questions

1.How many questions are available for Atomic Physics?

This chapter includes 48 questions compiled from TS EAMCET papers spanning 2006 to 2025.

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

These are TS 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 TS EAMCET Physics?

Atomic Physics has appeared in 14 of the 25 years of TS EAMCET papers covered here, with 48 questions across 45 papers - about one per paper it appears in.

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

Of the 48 questions analysed for this chapter, 50% are easy, 42% moderate and 8% tough. 2020 had the most, with 8 questions.

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

These topics have carried the most weightage in Atomic Physics:

  • Atomic Spectrum - 26 questions (54%)
  • Bohr's Atomic Model - 20 questions (42%)
  • Atomic Structure - 2 questions (4%)
  • Atomic Spectrum has produced the most tough questions (2).
6.Is Atomic Physics's weightage in TS EAMCET going up or down?

Across all 45 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 0.9 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.