Question

The limit of resolution of eye is approximately

• A. $1^{°}$angle
• B. $1\text{'}$angle
• C. $1mm$
• D. $1cm$

Answer 1

The correct option is B

$1\text{'}$angle

Explanation:

1. The tiniest thing that the human eye can see is its resolution.
2. The pupil, a tiny opening in the eye, is responsible for regulating how much light enters our eyes.
3. The size of the pupil affects the eye's resolution, which suggests that when the pupil is large in low light, our eyes can discern more information than when the pupil is small in bright light.
4. The minimal angular resolution of the human eye has a natural pupil size of$2mm$, allowing us to see small things as near to our eyes as possible, yet comfortable vision requires a minimum distance of roughly $25cm$.
5. However, the figure of$0.1mm$ given for the smallest resolvable size suggests that the diffraction limit plays a significant role in the intensity of visual resolution.
6. We can also state that the eye's maximum resolution lasts for around one minute (angle).

Hence, the correct option is B.