Noopur needs a lens of power -4.5D for correction of her vision.
a)what kind of defect in vision is she suffering from ?
b)what is the focal length and nature of the corrective lens?
c)draw a ray diagram i)defected eye and ii)correction for ths defect
d)what are the causes of this defect?MARK 5 (Show the Ray Diagram please)
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She is suffering from near sightedness
Focal length=1/4.5;it is a concave lens
Focal length=1/4.5;it is a concave lens
Shishan:
Drawing?
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