Question

Give a reason why we cannot see on object clearly if it is placed very close to the eyes.

Answer 1

As the focal length of eye lens cannot be decreased below a certain limit, eye cannot see it clear .If the object is placed at a distance less than 25 cm, then the blurred image of the object is formed on retina

Answer 2

Answer:

If an object is placed very close to the eyes the light reflected from it doesn't fall on the retina . It either falls in front of the Retina or behind the retina or on the blind spot .

so, we cannot see the object . The minimum distance for seeing an object clearly is 25 cm..

hope it helps you

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