MCQ
The resolving power of human eye is:
- ✓$≈1′$
- B$≈10$
- C$≈10"$
- D$≈5"$
✓
Answer
Correct option: A.
$≈1′$
As we know the visibility of the human eye is limited up to a distance.
It is known to us that the normal pupil size of any human being is $4\ mm$. This measurement sets a minimum resolution approximately $1'$ to $2′.$
When we want to pull small objects closer to our eyes, we aim to see them properly. But it is often seen that after crossing a certain distance the particles become unclear no matter how much closer it is to our eyes.
This signifies that there is a minimum distance of comfortable viewing. This distance is roughly calculated as $25\ cm.$
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