Q.

The range of vision of a normal human eye?


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a

25 cm – infinity

b

20 cm – infinity

c

10 cm – infinity

d

5 cm – infinity  

answer is A.

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Detailed Solution

The range of a normal human eye is 25 cm to infinity.
A normal range of vision is defined as that range up to which a normal eye can see objects clearly without stretching or imposing any pressure on the eyes. The least comfortable distance range of the human eye is 25 cm is called the least distance of distinct vision. If an object is placid closer than 25 cm from the eye, it will be slightly difficult to focus on the object.
 
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