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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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1Why is a normal eye not able to see clearly the objects placed closer than \(25\ cm\)?
 
Our eyes can change the  of the lens and hence it can focus on the images from help in changing the focal length of the lens.
 
A normal eye is not able to see the objects placed closer than \(25\ cm\) clearly because the  of the eyes .
 
2. What happens to the image distance in the eye when we increase the distance of an object from the eye?
 
The image distance  as the size of the eyes cannot .
 
When we increase the distance of an object from the eye, this  the image distance of the eye. This increase in the distance of the object is  by . The focal length of the eyes  accordingly to always form an image at the  of the eye.