JEE Main Physics · Dual Nature of Radiation and Matter

Matter Waves in JEE Main

Name: Matter Waves: JEE Main previous year questions
Creator: Lumi

Matter Waves (Physics, Dual Nature of Radiation and Matter) came 19 times in 18 of the 42 JEE Main shifts Lumi analysed, across 12 distinct ideas. 10 of them came in 2024–26; it was last asked in 2026.

Questions: 19; in 18 shifts
Ideas asked: 12; 4 asked more than once
Numerical answer: 2; 11% of its questions
Pattern: Asked most years; last asked 2026

Questions each year

In the shifts Lumi analysed for each year.

Difficulty and format

Easy 9Medium 10Hard 0

Format

Single correct17 Q
Numerical value2 Q

Ideas inside the topic

12 ideas

Wavelength from Kinetic Energy4 Q
Wavelength Ratios of Different Particles3 Q
Wavelength from Accelerating Potential2 Q
Time Rate of Change of Wavelength2 Q
Wavelengths in Radioactive Decay1 Q
Wavelength in E-Field as Function of Time1 Q
Wavelength After Elastic Collision1 Q
Electron vs Photon (Same Wavelength)1 Q
Wavelength of Gas Molecule via V_rms1 Q
Wavelength in a Uniform Magnetic Field1 Q
Basic Wavelength-Momentum Relation1 Q
De Broglie Wavelength of Emitted Photoelectrons1 Q

Where it sits

Part of Dual Nature of Radiation and Matter, which had 40 questions in all. Matter Waves accounts for 48% of them. In Lumi's JEE taxonomy it belongs to Modern Physics.

Every question

All 19 Matter Waves questions

Newest first, each with its options and official answer.

4 Apr 2026, Shift 2 · Q44The de Broglie wavelength associated with an electron accelerated through a potential difference V is $\lambda_e$ and the de Broglie…EasySingle correct
5 Apr 2026, Shift 1 · Q35An electron of mass $m$ is moving in an electric field $\vec{E} = -2E_0\hat{i}$ ( $E_0$ = constant $> 0$ ), with an initial velocity…MediumSingle correct
5 Apr 2026, Shift 2 · Q43An electron is travelling with a velocity $v$ in free space and when it enters a medium, its velocity is reduced by 20%. The de Broglie…EasySingle correct
6 Apr 2026, Shift 2 · Q47The de Broglie wavelength for an electron accelerated through the potential difference of $V_1$ volt is $\lambda_1$ . When the potential…EasyNumerical value
2 Apr 2025, Shift 2 · Q33An electron with mass $m$ with an initial velocity $(t=0)$ $\vec{v} = v_0\hat{i}$ $(v_0 > 0)$ enters a magnetic field…MediumSingle correct
7 Apr 2025, Shift 2 · Q43A photoemissive substance is illuminated with a radiation of wavelength $\lambda_i$ so that it releases electrons with de-Broglie…MediumSingle correct
8 Apr 2025, Shift 2 · Q50An electron is released from rest near an infinite non-conducting sheet of uniform charge density ' $-\sigma$ ' .The rate of change of…MediumNumerical value
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
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
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 Apr 2023, Shift 1 · Q35The kinetic energy of an electron, $\alpha$ -particle and a proton are given as 4 K, 2 K and K respectively. The de-Broglie wavelength…MediumSingle correct
28 Jul 2022, Shift 1 · Q47The equation $\lambda=\frac{1.227}{x}$ nm can be used to find the de-Brogli wavelength of an electron. In this equation $x$ stands for :…EasySingle correct
25 Jul 2021, Shift 1 · Q6What should be the order of arrangement of de-Broglie wavelength of electron ( $\lambda_e$ ), an $\alpha$ -particle ( $\lambda_\alpha$ ) and…EasySingle correct
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
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
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
9 Jan 2020, Shift 2 · Q18An electron of mass $m$ and magnitude of charge $|e|$ initially at rest gets accelerated by a constant electric field $E$ . The rate of…MediumSingle correct
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
2 Apr 2017 (offline) · Q24A particle A of mass m and initial velocity $v$ collides with a particle B of mass $\frac{m}{2}$ which is at rest. The collision is head…MediumSingle correct