Jump to a section

Physics - Dual Nature of Matter

Practise 89 TS EAMCET previous year questions on Dual Nature of Matter, compiled from papers spanning 2001 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.

Dual Nature of Matter has been asked in 22 of the 24 years of TS EAMCET papers analysed (2001–2024), with 89 questions in all. 55% of them were easy, 36% moderate and 9% tough. Most of its questions came from 2022, with 13 questions that year. In the last three years (2022–2024) it had 26 questions across 17 papers, about 1.5 per paper.

The chapter's 4 topics are not weighted equally: Photoelectric Effect (58 questions, 65%), Matter Waves (28 questions, 31%), and Davison and Germer Experiment (2 questions, 2%) have been asked the most. Photoelectric Effect has also led over the last five years, with 24 questions. Photoelectric Effect has produced the most tough questions (5).

  1. 1Match the "Technology" given in List-1 with the "Principle of Physics" given in List-2. List - 1 (Technology) List - 2 (Principle of Physics04 May, 2025 (M)Thermodynamic Processes
  2. 2The work done to accelerate an electron from rest so that it can have a de Broglie wavelength of is nearly (Planck's constant and mass of el04 May, 2025 (M)Matter Waves
  3. 3In a photoelectric experiment, the slope of the graph drawn between stopping potential along y -axis and frequency of incident radiation alo04 May, 2025 (E)Photoelectric Effect
  4. 4When photons incident on a photosensitive material of work function 1.5 eV, the maximum velocity of the emitted photoelectrons is . The stop03 May, 2025 (E)Photoelectric Effect
  5. 5The potential energy of an electron in an orbit of hydrogen atom is -6.8 eV . The de Broglie wavelength of the electron in this orbit is ( i03 May, 2025 (E)Matter Waves
  6. 6Photons of energy 4.5 eV are incident on a photosensitive material of work function 3 eV. The de Broglie wavelength associated with the phot02 May, 2025 (M)Matter Waves
  7. 7When a photosensitive material is illuminated by photons of energy 3.1 eV, the stopping potential of the photoelectrons is 1.7 V. When the s02 May, 2025 (E)Photoelectric Effect
  8. 8The de Broglie wavelength of a proton is twice the de Broglie wavelength of an alpha particle. The ratio of the kinetic energies of the prot11 May, 2024 (M)Matter Waves
  9. 9The de Broglie wavelength of a proton is twice the de Broglie wavelength of an alpha particle. The ratio of the kinetic energies of the prot10 May, 2024 (M)Matter Waves
  10. 10Wave picture of light has failed to explain10 May, 2024 (E)Photoelectric Effect
  11. 11The work function of a photosensitive metal surface is 1.1 eV . Two light beams of energies 1.5 eV and 2 eV incident on the metal surface. T10 May, 2024 (E)Photoelectric Effect
  12. 12If Planck's constant is , then the slope of a graph drawn between cut off voltage and frequency of incident light in a photoelectric experim09 May, 2024 (M)Photoelectric Effect
  13. 13If the de Broglie wavelength of a neutron at a temperature of is , then the de Broglie wavelength of the neutron at a temperature of is09 May, 2024 (E)Matter Waves
  14. 14Electromagnetic radiation of intensity is falling on a black surface. The radiation pressure on the surface is14 May, 2023 (M)Photoelectric Effect
  15. 15Radiations of wavelength incidents on a photo sensitive material of work function . The stopping potential is nearly14 May, 2023 (M)Photoelectric Effect
  16. 16The graph given in the figure shows the variation of photo current (I) and the applied voltage (V) for two different materials and for two d14 May, 2023 (E)Photoelectric Effect
  17. 17The de Broglie wavelength of a particle moving with a speed of is equal to the wavelength of a photon. If is speed of the photon in vacuum, 13 May, 2023 (M)Photoelectric Effect
  18. 18A photon released by the transition of an electron from the second excited state to the ground state of Hydrogen atom is incident on the sur13 May, 2023 (E)Matter Waves
  19. 19The de Broglie wavelength of an electron accelerated between two plates having a potential difference of 900 is neariy.12 May, 2023 (M)Matter Waves
  20. 20The additional energy that should be given to an electron to reduce its de-Broglie wavelength from to is12 May, 2023 (E)Matter Waves
  21. 21Statement (I) : By increasing the potential difference between cathode and anode continuously in a photoelectric experiment, the photo curre20 Jul, 2022 (M)Photoelectric Effect
  22. 22Which of the following has the largest de Broglie wavelength?20 Jul, 2022 (M)Matter Waves
  23. 23When monochromatic light falls on a photo-sensitive metal, an electron is emitted with maximum velocity . Find the stopping potential. [char20 Jul, 2022 (E)Photoelectric Effect
  24. 24A lamp of power radiates energy uniformly in all direction. The wavelength of radiation is . The photon flux on a small screen from the lamp20 Jul, 2022 (E)Photoelectric Effect
  25. 25The shortest wavelength in Balmer series of hydrogen atom spectrum is approximately equal to (use )20 Jul, 2022 (E)Matter Waves
  26. 26About of the power of a bulb is converted to visible radiation. Assuming that the radiations is emitted isotropically and neglecting reflect19 Jul, 2022 (M)Photoelectric Effect
  27. 27Light strikes a metal surface causing photoelectric emission. The wavelength of incident light is . If the stopping potential for the ejecte19 Jul, 2022 (M)Photoelectric Effect
  28. 28The de-Broglie wavelength associated with an electron, accelerated through a potential difference of 121 volts is about: [Take Plank's const19 Jul, 2022 (M)Matter Waves
  29. 29In a photo electric experiment, the wavelength of the light incident on the metal is changed from to . The decrease in the stopping potentia19 Jul, 2022 (E)Photoelectric Effect
  30. 30The de-Broglie wavelength of an electron with kinetic energy of is Take SI unit, mass of electron . Charge of an electron )19 Jul, 2022 (E)Photoelectric Effect
  31. 31For photoelectric effect which of the following statements are true. I) The kinetic energies of the photoelectrons do not depend on the freq18 Jul, 2022 (M)Photoelectric Effect
  32. 32Which of the following statements is NOT true?18 Jul, 2022 (M)Photoelectric Effect
  33. 33The value of Plank s constant, if the slope of the graph of stopping potential vs frequency of incident light is 4 10 - 15 V s is (given cha18 Jul, 2022 (E)Photoelectric Effect
  34. 34In a photoelectric experiment three different lights are incident on a metal of work function . Light is wavelength with intensity , light i06 Aug, 2021 (M)Photoelectric Effect
  35. 35A radiation of energy falls normally on a perfectly reflecting surface. The momentum transferred to the surface is ( is velocity of light)06 Aug, 2021 (E)Photoelectric Effect
  36. 36In a photoelectric effect experiment the cathode metal is exposed to light of wavelength . The maximum kinetic energy of the ejected electro06 Aug, 2021 (E)Photoelectric Effect
  37. 37How much current is drawn by the primary coil of a transformer, which steps down 220 V to 55 V to operate a device with an impedance of 275 05 Aug, 2021 (M)Matter Waves
  38. 38An alternating current is given by i = 2 sin t + 6 cos t . The R.M.S. current in amperes is,04 Aug, 2021 (M)Matter Waves
  39. 39The work function of a metal is h v 0 . Light of frequency v falls on this metal. The photoelectric effect will take place only if04 Aug, 2021 (E)Photoelectric Effect
  40. 40Choose the correct statement.14 Sep, 2020 (M)Photoelectric Effect
  41. 41A radiation of energy falls on a perfectly reflecting surface. The momentum transferred to the surface is (let speed of light)14 Sep, 2020 (M)Matter Waves
  42. 42According to the photoelectric effect, the plot of kinetic energy of the emitted photo-electrons from a metal versus the frequency of the in14 Sep, 2020 (M)Photoelectric Effect
  43. 43A light of wavelength is used in a photoelectric experiment. The metal electrode of work function of is used in the experiment. The stopping14 Sep, 2020 (E)Photoelectric Effect
  44. 44When the energy of incident radiation is increased by , the kinetic energy of the photoelectrons emitted from a metal surface increased from11 Sep, 2020 (M)Photoelectric Effect
  45. 45In a photoelectric effect experiment if the frequency of light is doubled, the stopping potential will11 Sep, 2020 (E)Photoelectric Effect
  46. 46A monochromatic light of wavelength ejects photoelectrons from a metal surface with work function . These photoelectrons are made to collide11 Sep, 2020 (E)Photoelectric Effect
  47. 47Photons of energy and wavelength fall on a metal plate and release photoelectrons with a maximum velocity . By decreasing by , the maximum v10 Sep, 2020 (M)Photoelectric Effect
  48. 48Let and be the maximum velocities of the emitted electrons when the surface of a metal is illuminated with light waves of energy and , respe10 Sep, 2020 (E)Photoelectric Effect
  49. 49A current of 6 A is flowing at 220 V in the primary coil of a transformer. If the voltage produced in the secondary coil is 1100 V and 40 % 09 Sep, 2020 (M)Photoelectric Effect
  50. 50The de-Broglie wavelength of the electron in the first Bohr orbit of the hydrogen atom is09 Sep, 2020 (E)Matter Waves

Frequently Asked Questions

1.How many questions are available for Dual Nature of Matter?

This chapter includes 89 questions compiled from TS EAMCET papers spanning 2001 to 2025.

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

These are TS EAMCET questions specifically for the Dual Nature of Matter chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Dual Nature of Matter an important chapter for TS EAMCET Physics?

Dual Nature of Matter has appeared in 23 of the 25 years of TS EAMCET papers covered here, with 89 questions across 59 papers - about 2 per paper it appears in.

4.What is the difficulty level of Dual Nature of Matter questions in TS EAMCET?

Of the 89 questions analysed for this chapter, 55% are easy, 36% moderate and 9% tough. 2022 had the most, with 13 questions.

5.Which topics in Dual Nature of Matter should I focus on?

These topics have carried the most weightage in Dual Nature of Matter:

  • Photoelectric Effect - 58 questions (65%)
  • Matter Waves - 28 questions (31%)
  • Davison and Germer Experiment - 2 questions (2%)
  • Photoelectric Effect has produced the most tough questions (5).
6.Is Dual Nature of Matter's weightage in TS EAMCET going up or down?

Across all 59 papers analysed, Dual Nature of Matter has averaged about 1.5 questions per paper. In the last three years (2022–2024), that average has stayed about the same, at about 1.5 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.