Question

A person wants to read a book placed at
20 cm whereas near point of his eye is
30 cm. Calculate the power of the lens
required.​

Answer 1

Answer:

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Hope it wil help you give thanks and mark as brainlist plz

Explanation:

Given, u = -20 cm, v = - 30 cm , P = ?

f = uv/u-v = (-20)(-30)/(-20+30)

f = +60cm

P = 100/f = 100/60

P = 1.67 D

Answer 2

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