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 ray diagrams showing the (a) defected eye and (b) correction for this defect.d)What are the causes of this defect?
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The focal length is negative so she must have use concave lens
She is affected by hypermetropia.
Causes behind this is : the ciliary muscles are not properly functioning
She is affected by hypermetropia.
Causes behind this is : the ciliary muscles are not properly functioning
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ecjaya:
It is myopia not hypermetropia
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