Learn

Friday, 9 October

JEE Main Physics · Class 12

Dual Nature of Radiation and Matter: JEE Main previous year questions

Dual Nature of Radiation and Matter had 40 questions in the 42 JEE Main shifts Lumi analysed, about 1.0 a shift, asked in 36 of 42 shifts. It ranks 11 of 29 Physics chapters by questions; 0% of its questions were hard.

Questions
40
in 36 of 42 shifts
A shift, on average
1.0
of 25 Physics questions
Since 2024
-0.2
1.0 a shift in 2017–23, 0.8 in 2024–26
Numerical answer
4
10% of its questions

Year by year

How often it came

Questions in the analysed shifts of each year. Years differ in how many shifts Lumi analysed, so read the bars with the shift count.

Questions each year
05102’174’204’214’224’238’245’259’26

2017: 1 shifts · 2020: 4 shifts · 2021: 4 shifts · 2022: 4 shifts · 2023: 4 shifts · 2024: 8 shifts · 2025: 8 shifts · 2026: 9 shifts

Difficulty by year
  • 20172
  • 20204
  • 20214
  • 20224
  • 20234
  • 20248
  • 20255
  • 20269
  • Easy
  • Medium
  • Hard

Inside the chapter

Topics and the ideas that repeat

3 topics and 22 distinct ideas; 9 ideas were asked more than once. Most questions are single correct and calculation.

Topics, by questions

1 questions had no close topic in our taxonomy and are counted for the chapter only.

Ideas asked most
9 repeat

Study it on Lumi

Dual Nature of Radiation and Matter: the interactive lesson

Every question

All 40 Dual Nature of Radiation and Matter questions

Newest first. Each opens with its options and the official answer.

2026 9 questions

  1. 2 Apr 2026, Shift 1 · Q42For a certain metal, when monochromatic light of wavelength λ\lambda is incident, the stopping potential for photoelectrons is 3Vo3V_o.…MediumSingle correct
  2. 4 Apr 2026, Shift 1 · Q32The graph shows variation of stopping potential VoV_o with the frequency ν\nu of the incident radiation for three photosensitive metals…MediumDiagram basedHas a figure
  3. 4 Apr 2026, Shift 2 · Q26Match the LIST-I with LIST-II List-I: A. Planck's constant B. Stopping potential C. Work function D. Threshold frequency List-II: I.…MediumMatch the list
  4. 4 Apr 2026, Shift 2 · Q44The de Broglie wavelength associated with an electron accelerated through a potential difference V is λe\lambda_e and the de Broglie…EasySingle correct
  5. 5 Apr 2026, Shift 1 · Q35An electron of mass mm is moving in an electric field E⃗=−2E0i^\vec{E} = -2E_0\hat{i} (E0E_0 = constant >0> 0), with an initial velocity…MediumSingle correct
  6. 5 Apr 2026, Shift 1 · Q41Light source having wavelength 331 nm is used to generate photo-electrons whose stopping potential is 0.2 V. The work function of the used…EasySingle correct
  7. 5 Apr 2026, Shift 2 · Q43An electron is travelling with a velocity vv in free space and when it enters a medium, its velocity is reduced by 20%. The de Broglie…EasySingle correct
  8. 6 Apr 2026, Shift 2 · Q47The de Broglie wavelength for an electron accelerated through the potential difference of V1V_1 volt is λ1\lambda_1. When the potential…EasyNumerical value
  9. 8 Apr 2026, Shift 2 · Q43K1K_1 and K2K_2 be the maximum kinetic energies of photoelectrons emitted from a surface of a given material for the light of wavelength…MediumSingle correct

2025 5 questions

  1. 2 Apr 2025, Shift 1 · Q44A monochromatic light is incident on a metallic plate having work function ϕ\phi. An electron, emitted normally to the plate from a point…MediumSingle correct
  2. 2 Apr 2025, Shift 2 · Q33An electron with mass mm with an initial velocity (t=0)(t=0) v⃗=v0i^\vec{v} = v_0\hat{i} (v0>0)(v_0 > 0) enters a magnetic field…MediumSingle correct
  3. 3 Apr 2025, Shift 1 · Q43The work function of a metal is 3 eV. The color of the visible light that is required to cause emission of photoelectrons isEasySingle correct
  4. 7 Apr 2025, Shift 2 · Q43A photoemissive substance is illuminated with a radiation of wavelength λi\lambda_i so that it releases electrons with de-Broglie…MediumSingle correct
  5. 8 Apr 2025, Shift 2 · Q50An electron is released from rest near an infinite non-conducting sheet of uniform charge density '−σ-\sigma' .The rate of change of…MediumNumerical value

2024 8 questions

  1. 6 Apr 2024, Shift 2 · Q47When UV light of wavelength 300 nm is incident on the metal surface having work function 2.13 eV, electron emission takes place. The…EasySingle correct
  2. 8 Apr 2024, Shift 1 · Q44A proton and an electron are associated with same de-Broglie wavelength. The ratio of their kinetic energies is: (Assume…EasySingle correct
  3. 9 Apr 2024, Shift 1 · Q46A proton, an electron and an alpha particle have the same energies. Their de-Broglie wavelengths will be compared as :EasySingle correct
  4. 9 Apr 2024, Shift 2 · Q47UV light of 4.134.13 eV is incident on a photosensitive metal surface having work function 3.133.13 eV. The maximum kinetic energy of ejected…EasySingle correct
  5. 29 Jan 2024, Shift 1 · Q46The de-Broglie wavelength of an electron is the same as that of a photon. If velocity of electron is 25% of the velocity of light, then…MediumSingle correct
  6. 30 Jan 2024, Shift 2 · Q46For the photoelectric effect, the maximum kinetic energy (EkE_k) of the photoelectrons is plotted against the frequency (ν\nu) of the…EasySingle correctHas a figure
  7. 31 Jan 2024, Shift 1 · Q46When a metal surface is illuminated by light of wavelength λ\lambda, the stopping potential is 8V. When the same surface is illuminated…MediumSingle correct
  8. 31 Jan 2024, Shift 2 · Q46In a photoelectric effect experiment a light of frequency 1.5 times the threshold frequency is made to fall on the surface of…EasySingle correct

2023 4 questions

  1. 6 Apr 2023, Shift 1 · Q35The kinetic energy of an electron, α\alpha-particle and a proton are given as 4 K, 2 K and K respectively. The de-Broglie wavelength…MediumSingle correct
  2. 8 Apr 2023, Shift 2 · Q45In photo electric effect A. The photocurrent is proportional to the intensity of the incident radiation. B. Maximum Kinetic energy with…EasyOther
  3. 11 Apr 2023, Shift 1 · Q34A metallic surface is illuminated with radiation of wavelength λ\lambda, the stopping potential is V0V_0. If the same surface is…MediumSingle correct
  4. 13 Apr 2023, Shift 2 · Q47Given below are two statements: Statement I : Out of microwaves, infrared rays and ultraviolet rays, ultraviolet rays are the most…EasyTwo statements

2022 4 questions

  1. 25 Jul 2022, Shift 1 · Q47A metal exposed to light of wavelength 800800 nm and and emits photoelectrons with a certain kinetic energy. The maximum kinetic energy of…MediumSingle correct
  2. 28 Jul 2022, Shift 1 · Q47The equation λ=1.227x\lambda=\frac{1.227}{x} nm can be used to find the de-Brogli wavelength of an electron. In this equation xx stands for :…EasySingle correct
  3. 24 Jun 2022, Shift 1 · Q56When light of frequency twice the threshold frequency is incident on the metal plate, the maximum velocity of emitted electron is v1v_1.…MediumNumerical value
  4. 29 Jun 2022, Shift 1 · Q37Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : The photoelectric…EasyAssertion–reason

2021 4 questions

  1. 25 Jul 2021, Shift 1 · Q6What should be the order of arrangement of de-Broglie wavelength of electron (λe\lambda_e), an α\alpha-particle (λα\lambda_\alpha) and…EasySingle correct
  2. 25 Jul 2021, Shift 1 · Q7A particle of mass 4M at rest disintegrates into two particles of mass M and 3M respectively having non zero velocities. The ratio of…EasySingle correct
  3. 16 Mar 2021, Shift 2 · Q2The de-Broglie wavelength associated with an electron and a proton were calculated by accelerating them through same potential of 100 V.…MediumSingle correct
  4. 18 Mar 2021, Shift 1 · Q8A particle is travelling 4 times as fast as an electron. Assuming the ratio of de-Broglie wavelength of a particle to that of electron is…EasySingle correct

2020 4 questions

  1. 8 Jan 2020, Shift 1 · Q17When photon of energy 4.0 eV strikes the surface of a metal A, the ejected photoelectrons have maximum kinetic energy TAT_A eV and…MediumSingle correct
  2. 9 Jan 2020, Shift 2 · Q18An electron of mass mm and magnitude of charge ∣e∣|e| initially at rest gets accelerated by a constant electric field EE. The rate of…MediumSingle correct
  3. 2 Sep 2020, Shift 1 · Q25When radiation of wavelength λ\lambda is used to illuminate a metallic surface, the stopping potential is VV. When the same surface is…MediumNumerical value
  4. 6 Sep 2020, Shift 2 · Q19Assuming the nitrogen molecule is moving with r.m.s. velocity at 400 K, the de-Broglie wavelength of nitrogen molecule is close to :…MediumSingle correct

2017 2 questions

  1. 2 Apr 2017 (offline) · Q13An observer is moving with half the speed of light towards a stationary microwave source emitting waves at frequency 10 GHz. What is the…MediumSingle correct
  2. 2 Apr 2017 (offline) · Q24A particle A of mass m and initial velocity vv collides with a particle B of mass m2\frac{m}{2} which is at rest. The collision is head…MediumSingle correct

Pattern: Asked most years.