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Physics - Atomic Physics

Practise 25 AIIMS previous year questions on Atomic Physics, compiled from papers spanning 2003 to 2019. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty AIIMS tests.

Atomic Physics has been asked in 15 of the 19 years of AIIMS papers analysed (2001–2019), with 25 questions in all. 48% of them were easy, 40% moderate and 12% tough. Most of its questions came from 2018, with 4 questions that year. In the last three years (2017–2019) it had 5 questions across 5 papers, about 1 per paper.

The chapter's 3 topics are not weighted equally: Atomic Spectrum (16 questions, 64%), Bohr's Atomic Model (6 questions, 24%), and Atomic Structure (3 questions, 12%) have been asked the most. Atomic Spectrum has produced the most tough questions (3).

  1. 1is given to in orbit, then find its final energy when it comes out of -atom.26 May, 2019Bohr's Atomic Model
  2. 2In a hydrogen like atom electron makes transition from an energy level with quantum number to another with quantum number . If , the frequen27 May, 2018Bohr's Atomic Model
  3. 3The largest wavelength in the ultraviolet region of the hydrogen spectrum is . The smallest wavelength in the infrared region of the hydroge27 May, 2018Atomic Spectrum
  4. 4In hydrogen atom, electron excites from ground state to higher energy state and its orbital velocity is reduced to of its initial value. The26 May, 2018Bohr's Atomic Model
  5. 5is the frequency of the series limit of Lyman series, is the frequency of the first line of Lyman series and is the frequency of the series 26 May, 2018Atomic Spectrum
  6. 6Assertion: Electrons in the atom are held due to coulomb forces. Reason : The atom is stable only because the centripetal force due to Coulo2016Atomic Structure
  7. 7Total energy of an electron in hydrogen atoms above leads to2015Atomic Spectrum
  8. 8Ionisation potential of hydrogen atom is . Hydrogen atoms in the ground state are excited by monochromatic radiation of photon energy . The 2015Atomic Spectrum
  9. 9If the wavelength of line of Balmer series of hydrogen is , the wavelength of the line of series will be2014Atomic Spectrum
  10. 10A triply ionized beryllium has the same orbital radius as the ground state of hydrogen. Then the quantum state of is2014Atomic Spectrum
  11. 11Ratio of longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is2013Atomic Spectrum
  12. 12Total energy of the electron in hydrogen atom above leads to2012Atomic Spectrum
  13. 13Assertion : Bohr's atomic model cannot be used to explain multiple electron species. Reason: It does not take inter-electronic interactions 2012Atomic Structure
  14. 14Assertion: Total energy of electron in an hydrogen atom is negative. Reason : It is bounded to the nucleus.2012Bohr's Atomic Model
  15. 15The series corresponding to minimum wavelength transition in -atom2011Atomic Spectrum
  16. 16What would be maximum wavelength for Brackett series of hydrogen-spectrum?2010Atomic Spectrum
  17. 17What would be the radius of second orbit of ion?2010Atomic Spectrum
  18. 18The wavelength of Lymen series for first number is2010Atomic Spectrum
  19. 19The wavelengths of -rays for lead isotopes and are and respectively. Then2009Atomic Spectrum
  20. 20Assertion : It is essential that all the lines available in the emission spectrum will also be available in the absorption spectrum. Reason 2008Atomic Spectrum
  21. 21What is the energy of \( {He}^{+}\)electron in first orbit?2007Bohr's Atomic Model
  22. 22The ground state energy of hydrogen atom is . What is the potential energy of the electron in this state?2005Bohr's Atomic Model
  23. 23Assertion : In He-Ne laser, population inversion takes place between energy levels of neon atoms. Reason : Helium atoms have a meta-stable e2004Atomic Spectrum
  24. 24Assertion : A tube light emits white light. Reason : Emission of light in a tube takes place at a very high temperature.2003Atomic Spectrum
  25. 25Assertion : Bohr had to postulate that the electrons in stationary orbits around the nucleus do not radiate. Reason : According to classical2003Atomic Structure

Frequently Asked Questions

1.How many questions are available for Atomic Physics?

This chapter includes 25 questions compiled from AIIMS papers spanning 2003 to 2019.

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

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

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

Atomic Physics has appeared in 15 of the 19 years of AIIMS papers covered here, with 25 questions across 16 papers - about 2 per paper it appears in.

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

Of the 25 questions analysed for this chapter, 48% are easy, 40% moderate and 12% tough. 2018 had the most, with 4 questions.

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

These topics have carried the most weightage in Atomic Physics:

  • Atomic Spectrum - 16 questions (64%)
  • Bohr's Atomic Model - 6 questions (24%)
  • Atomic Structure - 3 questions (12%)
  • Atomic Spectrum has produced the most tough questions (3).
6.Is Atomic Physics's weightage in AIIMS going up or down?

Across all 16 papers analysed, Atomic Physics has averaged about 1.6 questions per paper. In the last three years (2017–2019), that average has fallen, at about 1.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.