Question
The human eye is like a camera that has a lens with:
NDA
General Ability
General Science
2024
NDA 2024 (Phase 1)
NDA General Ability Question (2024) — Solution
Options
- A. fixed focal length and fixed asperture size.
- B. variable focal length and fixed aperture size.
- C. fixed focal length and variable aperture size.
- D. variable focal length and variable aperture size.
Answer
D. variable focal length and variable aperture size.
Step-by-step solution
Variable focal length and variable aperture size: This option means that both the focal length and the aperture size can change. The human eye indeed has a variable focal length (accommodation allows it to focus on objects at varying distances) and a variable aperture size (pupil dilation adjusts based on light conditions).
Related: General Ability — General Science · All PYQ Banks