NEET UG 2023 · Physics · Question 46
NEET 2023 Physics, question 46
Question 46 of the NEET 2023 paper (code G6) is a Physics question from Ray Optics and Optical Instruments. Its idea, Combination of Thin Lenses, was asked twice, in 2023 and 2025, across NEET 2017–2026. The NTA final answer key gives option 1.
Updated 2026-10-08
Q46 · Physics
Two thin lenses are of same focal lengths (), but one is convex and the other one is concave. When they are placed in contact with each other, the equivalent focal length of the combination will be :
- 1InfiniteOfficial answer
- 2Zero
- 3
- 4
Official answer: option 1 · NTA final answer key
Same idea
Combination of Thin Lenses, in other papers
NEET asked this idea twice, in 2023 and 2025. The other question below.
- 2025 Q13In a certain camera, a combination of four similar thin convex lenses are arranged axially in contact. Then the power of the combination…One-line MCQ · Easy
Combination of Thin Lenses: every question and how it was framed
The chapter
Ray Optics and Optical Instruments in ten years of NEET
26 questions from 2017–2026, asked in 10 of 10 papers, about 2.5 a paper. Thin Lens Formula alone had 9.