NEET UG 2026 · Physics · Question 22
NEET 2026 Physics, question 22
Question 22 of the NEET 2026 paper (re-exam) is a Physics question from Ray Optics and Optical Instruments. Its idea, Apparent Depth for Non-Air Observer, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 2.
Updated 2026-10-08
Q22 · Physics
Consider three media P, Q and R with refractive indices 1, 1.25, and 1.5, respectively. The medium Q having a thickness of 5 cm is placed between extended media P and R as shown in the figure. An object O is placed at the center of medium Q. If viewed from medium P near the normal direction, the apparent depth of O is . For similar observation from medium R, the apparent depth is . The value of , in cm, is :
The figure, described in words
Slab of medium Q (n_Q = 1.25, thickness 5 cm) with object O at its centre, medium P (n_P = 1) above and medium R (shaded) below.
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Official answer: option 2 · NTA final answer key
Same idea
The only question on Apparent Depth for Non-Air Observer
No other NEET paper from 2017–2026 tested this exact idea.
Apparent Depth for Non-Air Observer: 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. Snell's Law alone had 8.