K.C.S.E Biology Q & A - MODEL 1997PP1QN12
A person was able to read a book clearly at arm’s length but at normal reading distance.
(a) State the detect the person suffered from?
(b) Why was he unable to read book clearly at normal distance
(c) How can the defect be corrected?
(a) Long sightedness/ hypermetropia
(b) Eye ball too short/ eye lens are unable to focus because they are flat/weak, unable to focus the image on the retina; eyes are unable to accommodate/ change their focal length
(c)By wearing convex / biconvex lenses; accept converging lenses
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