please help

Asked by  | 27th Mar, 2009, 10:27: AM

Expert Answer:

For myopic eye: We use Concave lens for the correction.When the far distance is given, that is to be taken as 'v'

v - far point
u- infinity

For hypermetropic eye: We use convex lense for the correction.

v- near point
u- near point for a normal eye = 25cm

(Do apply the correct signs using the sign conventions)

Answered by  | 27th Mar, 2009, 11:26: AM

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