science
Grade6
Easy
Question
A normal human eye cannot see the object placed at a distance ____ from itself.
- > 25 cm
- < 25 cm
- = 25 cm
- All of the above
Hint:
There is a near point of the eye. If the object is placed at a distance less than the near point we won't be able to see it.
The correct answer is: < 25 cm
A normal eye cannot clearly see objects closer than 25 cm because the ciliary muscle of the eye cannot contract beyond a certain limit. The near point of the eye is 25m and the far point is infinity
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