Question

A person having a myopic eye uses a concave lens of focal length 10cm. Find the power of the focal lens?

Answer 1

Power = 1/focal length
Power = 10 diaoptocentimeter

Answer 2

Answer:

given :

focal length (f) = -10cm

we know that,

power=100/f

p = 100/-10

∴ the power of lens is -10 D

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