NEET UG · Physics · Ray Optics and Optical Instruments
Lens Maker's Formula
NEET asked Lens Maker's Formula once in 2017–2026, in 2023. It belongs to Thin Lens Formula, in Ray Optics and Optical Instruments (Physics).
Updated 2026-10-08
- Times asked
- 1
- in 2017–2026
- Papers
- 1
- of 10
- First asked
- 2023
- the only time
- Chance next paper
- 4%
- calibrated historical rate
Questions on this idea, by paper
2017–2026. 2023.
How NEET framed it
Figure-based is the usual form. Skill tested: multi-step.
- Numerical
Chance asked next paper 4%
Every question
The question
From the official NEET UG papers, newest first. Open one for the full question, the options and the official answer.
- 2023 Q45In the figure shown here, what is the equivalent focal length of the combination of lenses (Assume that all layers are thin)?Figure-based · Hard · figure
Papers: NEET 2023.
Same topic
Other ideas in Thin Lens Formula
Thin Lens Formula has 7 ideas NEET has asked; 2 of them came up in more than one question.
- Combination of Lenses Separated by a Distance2× · 2026
- Combination of Thin Lenses2× · 2025
- Index Correction on the Optical Benchonce · 2026
- Optical Power Calculationonce · 2022
- Thin Lens Formula Applicationonce · 2021
- Liquid Trapped Between Two Lensesonce · 2019