Physics - Dual Nature of Matter
Practise 11 NEST (NISER) previous year questions on Dual Nature of Matter, compiled from papers spanning 2011 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 NEST (NISER) tests.
Dual Nature of Matter has been asked in 9 of the 16 years of NEST (NISER) papers analysed (2011–2026), with 11 questions in all. 0% of them were easy, 100% moderate and 0% tough. Most of its questions came from 2021, with 2 questions that year. In the last three years (2024–2026) it had 1 question across 4 papers, about 0.3 per paper.
The chapter's 2 topics are not weighted equally: Matter Waves (7 questions, 64%) and Photoelectric Effect (4 questions, 36%) have been asked the most. Over the last five years the most frequent topics have been Photoelectric Effect (1) and Matter Waves (1).
- 1Monochromatic light from a discharge tube containing dilute gas of hydrogen atoms falls on platinum metal which has a work function of 5.65 2025Photoelectric Effect
- 2A proton accelerated from rest by a potential difference of volts has a de Broglie wavelength of . A fully ionized Helium atom is similarly 2023 (Session 1)Matter Waves
- 3In a photoelectric setup electrons of maximum kinetic energy 0.5 eV and 1.3 eV are liberated when ultraviolet light of wavelengths 310 nm an2021 (Session 1)Photoelectric Effect
- 4An electron beam of energy 150 eV is incident normally on a Young's double slit setup. The distance between the slits is 0.1 mm and the dist2021 (Session 1)Matter Waves
- 5A free particle with initial kinetic energy and de Broglie wavelength enters a region in which it has potential energy . The new de Broglie 2020 (Session 1)Matter Waves
- 6A spherical copper particle has about 125 atoms. If the atomic radius of copper is , the diameter of the particle is close to the wavelength2019 (Session 2)Matter Waves
- 7Ten electrons, each of mass are confined to a one dimensional box of size . Assume that the electrons are non-interacting, obey the Pauli ex2019 (Session 2)Matter Waves
- 8In an experiment on photoelectric effect photons of wavelength 300 nm eject electrons from a metal of work function 2.25 eV . A photon of en2016Photoelectric Effect
- 9A free particle with initial kinetic energy 9 eV and de Broglie wavelength 1 nm enters a region of constant potential energy such that the n2014Matter Waves
- 10The mean momentum of a particle has uncertainty . Taking Planck's constant to be , the uncertainty in the de Broglie wavelength of the parti2013Matter Waves
- 11In a photoelectric setup, three metals and with work functions and respectively , are illuminated with light of frequency and wavelength . T2011Photoelectric Effect
Frequently Asked Questions
1.How many questions are available for Dual Nature of Matter?
This chapter includes 11 questions compiled from NEST (NISER) papers spanning 2011 to 2025.
2.Are these questions only from NEST (NISER), or from other exams too?
These are NEST (NISER) 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 NEST (NISER) Physics?
Dual Nature of Matter has appeared in 9 of the 16 years of NEST (NISER) papers covered here, with 11 questions across 9 papers - about one per paper it appears in.
4.What is the difficulty level of Dual Nature of Matter questions in NEST (NISER)?
Of the 11 questions analysed for this chapter, 0% are easy, 100% moderate and 0% tough. 2021 had the most, with 2 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:
- Matter Waves - 7 questions (64%)
- Photoelectric Effect - 4 questions (36%)
6.Is Dual Nature of Matter's weightage in NEST (NISER) going up or down?
Across all 9 papers analysed, Dual Nature of Matter has averaged about 1.2 questions per paper. In the last three years (2024–2026), that average has fallen, at about 0.3 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.