MCQ
The resolving power of human eye is:
- A≈1′
- B≈10
- C≈10"
- D≈5"
✓
Answer
- ≈1′
Explanation:
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 4mm. 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 25cm.
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