NEET UG 2026 · Physics · Question 39
NEET 2026 Physics, question 39
Question 39 of the NEET 2026 paper (re-exam) is a Physics question from Thermodynamics. Its idea, First Law in Cyclic Processes, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 3.
Updated 2026-10-08
Q39 · Physics
One mole of an ideal monatomic gas undergoes a cyclic process as shown in the figure. The total heat supplied to the gas is :
The figure, described in words
P-V diagram: rectangle a(2,300) -> b(5,300) -> c(5,100) -> d(2,100) -> a; P in N/m^2, V in m^3, clockwise.
- 1400 J
- 2500 J
- 3600 JOfficial answer
- 4800 J
Official answer: option 3 · NTA final answer key
Same idea
The only question on First Law in Cyclic Processes
No other NEET paper from 2017–2026 tested this exact idea.
First Law in Cyclic Processes: every question and how it was framed
The chapter
Thermodynamics in ten years of NEET
32 questions from 2017–2026, asked in 10 of 10 papers, about 3.1 a paper. Laws of Thermodynamics alone had 10.