Example 1 · difficulty 2/5
A mark is viewed nearly normally through a 16 cm thick glass block of refractive index 4/3. What is the apparent upward shift of the mark?
- A. 4 cm
- B. 12 cm
- C. 16/3 cm
- D. 28 cm
2020 source guide · Physics
NEET 2020 Physics Ray Optics Questions
Use this page to connect the official 2020 paper with current Physics practice. NeetVellum does not claim a chapter appeared in that paper until the official question and final key have been mapped.
What to master
mirrors, lenses, refraction, optical instruments and sign-convention discipline.
Original practice preview
These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.
Example 2 · difficulty 2/5
An object in a transparent liquid is viewed nearly normally from air. Its real depth is 15 cm and its apparent depth is 10 cm. What is the liquid's refractive index relative to air?
- A. 2/3
- B. 3/2
- C. 5/2
- D. 1/2
Example 3 · difficulty 2/5
For light going from a medium of refractive index 5/3 into air, which equation correctly determines the critical angle C?
- A. cos C = 3/5
- B. sin C = 5/3
- C. sin C = 3/5
- D. tan C = 5/3
The evidence-first practice loop
- 1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
- 2. Attempt closed-bookExpose the concept or execution gap before rereading.
- 3. Repair and returnClassify the miss and re-practice after a delay.
Canonical chapter practice
Frequently asked questions
Are these official NEET 2020 Physics Ray Optics PYQs?
No. The previews are original NeetVellum practice questions. A historical item receives a PYQ label only after its official paper and authoritative final answer key are attached. Use the official archive for the source paper.
How should I use the NEET 2020 paper?
Solve the official paper under its original timing, verify against the final key, classify every miss, and then use the linked current-syllabus practice bank to repair the exposed concept.