Math, asked by asifanu771, 7 months ago

If a person uses alens of power -2D, then the focal length of the lens is

Answers

Answered by rp3788287

1

Answer:

-0.5m

Step-by-step explanation:

$f = \frac{1}{p}$

$= \frac{1}{ - 2d} \\ = - 0.5m$

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