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Friday, 9 October

NEET UG 2019 · Physics · Question 13

NEET 2019 Physics, question 13

Question 13 of the NEET 2019 paper (code P1) is a Physics question from Dual Nature of Radiation and Matter. Its idea, De Broglie Wavelength of Photoelectron, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 2.

Updated 2026-10-08

Q13 · Physics

An electron is accelerated through a potential difference of 10,000 V. Its de Broglie wavelength is, (nearly) : (me=9×10−31(m_e = 9\times10^{-31} kg)

  1. 112.2×10−1312.2\times10^{-13} m
  2. 212.2×10−1212.2\times10^{-12} mOfficial answer
  3. 312.2×10−1412.2\times10^{-14} m
  4. 412.2 nm

Official answer: option 2 · NTA final answer key

Same idea

The only question on De Broglie Wavelength of Photoelectron

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

De Broglie Wavelength of Photoelectron: 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