Question

How to find focal length of two lenses with their powers?

Answer 1

By using the formula p=1/f

HOPE IT HELPS YOU

Answer 2

Hii mate here is your answer :-

for finding the focal length of lenses you have to use this formula 1/f = 1/ V - 1/u

and for finding the power you have you use
:- P = 1/f

I hope it helps you
please mark it brilliant answer