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Friday, 9 October

NEET UG 2024 · Physics · Question 34

NEET 2024 Physics, question 34

Question 34 of the NEET 2024 paper (code T2) is a Physics question from Dual Nature of Radiation and Matter. Its idea, de Broglie Wavelength of Particles, was asked 4 times, in 2017, 2018, 2022 and 2024, across NEET 2017–2026. The NTA final answer key gives option 2.

Updated 2026-10-08

Q34 · Physics

The graph which shows the variation of (1λ2)\left(\frac{1}{\lambda^2}\right) and its kinetic energy, EE is (where λ\lambda is de Broglie wavelength of a free particle) :

The figure, described in words

Options are four graphs of 1/λ² (y) vs E (x) from origin: (1) concave-down rising curve, (2) straight line through origin, (3) concave-up rising curve, (4) decreasing curve.

  1. 1[graph: 1/λ21/\lambda^2 vs EE, curve rising from origin, concave down]
  2. 2[graph: 1/λ21/\lambda^2 vs EE, straight line through origin]Official answer
  3. 3[graph: 1/λ21/\lambda^2 vs EE, curve rising from origin, concave up]
  4. 4[graph: 1/λ21/\lambda^2 vs EE, decreasing curve]

Official answer: option 2 · NTA final answer key

Same idea

de Broglie Wavelength of Particles, in other papers

NEET asked this idea 4 times, in 2017, 2018, 2022 and 2024. The other 3 questions below.

  • 2022 Q30The graph which shows the variation of the de Broglie wavelength (λ\lambda) of a particle and its associated momentum (p) is :Figure-based · Easy
  • 2018 Q12An electron of mass m with an initial velocity V⃗=V0i^\vec{V} = V_0\hat{i} (V0>0V_0 > 0) enters an electric field E⃗=−E0i^\vec{E} = -E_0\hat{i} (E0E_0…Numerical · Medium
  • 2017 Q6The de-Broglie wavelength of a neutron in thermal equilibrium with heavy water at a temperature T (Kelvin) and mass m, is :One-line MCQ · Medium

de Broglie Wavelength of Particles: every question and how it was framed

The chapter

Dual Nature of Radiation and Matter in ten years of NEET

20 questions from 2017–2026, asked in 10 of 10 papers, about 1.9 a paper. Photoelectric Effect alone had 20.

Chapter analysisStudy this chapterPractise this chapter

Dual Nature of Radiation and Matter: questions per paper

0241’172’181’193’202’212’222’232’242’253’26