Question

power of the lens is + 2.0 D then it is Focus length is

Answer 1

power=+2D
focal length =
$\frac{1}{p}$
=1/2=0.5 m


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Answer 2

HERE IS YOUR ANSWER.
We are given P = 2D
f = ?
So, f = 1/P
f = 1/2
f = 0.5 m

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