Math, asked by Kjrao1977, 1 year ago

the focal length of a concave
lens according to the sign convention is

Answers

Answered by Hasti152002

1

It is always negative.....

Answered by anshikam04

0

Focal length of lens are always decided by their converging and diverging action
Converging lens, f=+ve
Diverging lens, f=-ve

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