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Friday, 9 October

NEET UG 2025 · Physics · Question 34

NEET 2025 Physics, question 34

Question 34 of the NEET 2025 paper (code 45) is a Physics question from Atoms. Its idea, De Broglie Wavelength in Bohr Orbit, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 2.

Updated 2026-10-08

Q34 · Physics

De-Broglie wavelength of an electron orbiting in the nn = 2 state of hydrogen atom is close to (Given Bohr radius = 0.052 nm)

  1. 10.067 nm
  2. 20.67 nmOfficial answer
  3. 31.67 nm
  4. 42.67 nm

Official answer: option 2 · NTA final answer key

Same idea

The only question on De Broglie Wavelength in Bohr Orbit

No other NEET paper from 2017–2026 tested this exact idea.

De Broglie Wavelength in Bohr Orbit: every question and how it was framed

The chapter

Atoms in ten years of NEET

13 questions from 2017–2026, asked in 9 of 10 papers, about 1.3 a paper. Bohr's Atomic Model alone had 13.

Atoms: questions per paper

0241’171’181’191’200’211’222’232’242’252’26