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Friday, 9 October

NEET UG 2025 · Physics · Question 13

NEET 2025 Physics, question 13

Question 13 of the NEET 2025 paper (code 45) 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 3.

Updated 2026-10-08

Q13 · Physics

In a certain camera, a combination of four similar thin convex lenses are arranged axially in contact. Then the power of the combination and the total magnification in comparison to the power (pp) and magnification (mm) for each lens will be, respectively –

  1. 14p4p and 4m4m
  2. 2p4p^4 and 4m4m
  3. 34p4p and m4m^4Official answer
  4. 4p4p^4 and m4m^4

Official answer: option 3 · 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.

  • 2023 Q46Two thin lenses are of same focal lengths (ff), but one is convex and the other one is concave. When they are placed in contact with each…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.

Ray Optics and Optical Instruments: questions per paper

0242’173’183’191’204’213’223’232’242’253’26