Question

The near point of a defective eye is 75 cm from the eye. What is the power of the corrective lens which enables him to read a book kept at distance of distinct vision.


plz tell me very urgent.......​

Answer 1

Answer:

The lens used here is Convex. Used to cure eye defect HYPERMETROPIA.

we know that ,

p = 1/f

Therefore ,

power = 1/0.75 ( As 75cm is 0.75m )

Power = 1.3 D

The power of lens is 1.3 dioptres.

Answer 2

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srry I posted a wrong answer by mistake.