Question

How to find focal length of convex lens and concave lens?

Answer 1

Answer:

there are 2 ways -

1. 1/f =1/v - 1/u

2. power of lens = 1/ focal length

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Answer 2

Answer:

There are 2 ways -

1. 1/f =1/v - 1/u

2. power of lens = 1/ focal length

Thanks! ❤️