Find the focal length of a lens of power

Asked by admin @ 12/08/2021 in Science viewed by 283 People

Find the focal length of a lens of power - 2.0 D. What type of lens is this?

Answered by admin @ 12/08/2021

Hola!!
Here's your answer.

✴ Power of a given lens = -2.0 Dioptre.

✴ AS PER THE FORMULA ,
Power = 1/Focal Length.

✳ P = 1/f.
✳ -2.0 = 1/f.
✳ f = 1/-2 = -0.5m.

✴ IT IS A DIVERGING LENS OR CONCAVE LENS.

Hope it helps!!
@charlie16.

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