NEET UG 2020 · Physics · Question 159
NEET 2020 Physics, question 159
Question 159 of the NEET 2020 paper (code E1) is a Physics question from Dual Nature of Radiation and Matter. Its idea, eV to Joule Conversion in Photoelectric Equations, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 3.
Updated 2026-10-08
Q159 · Physics
The energy required to break one bond in DNA is J. This value in eV is nearly :
- 16
- 20.6
- 30.06Official answer
- 40.006
Official answer: option 3 · NTA final answer key
Same idea
The only question on eV to Joule Conversion in Photoelectric Equations
No other NEET paper from 2017–2026 tested this exact idea.
eV to Joule Conversion in Photoelectric Equations: 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.