Question

When sahil tried to read a book by keeping it at a distance of 25 cm, the text print appeared to be blurred. (a) Is the image of the text getting formed before the retina, or beyond the retina of his eye? (b) What conclusion can be drawn about the 'least distance of distinct vision' of sahil's eye?

Answer 1

1. image is formed beyond retina
2. sahil's least distance of distinct vision is more than 25 cm

Answer 2

Explanation:

• When Sahil tried to read a book by keeping it at a distance of 25 cm, the text print appeared to be blurred. It means that Sahil is suffering from Hypermetropia.

• The image of text getting formed beyond the retina of his eye as his eyes is a case of Hypermetropia.

• The least distance of distinct vision' of Sahil's eye is extended. It can be correct by using a convex lens of appropriate focal length.

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Hypermetropia

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