Science, asked by Abdu269, 1 year ago

how to find whether focal length is negative or positive

Answers

Answered by Rohit963

The focal length, is positive for a concave mirror, and negative for a convex mirror.
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Abdu269: Its wrong

Abdu269: sorry

Abdu269: no it's wrong

Answered by maheshwarahardh

In concave mirror and convex lens focal length is negative and in convex mirror and concave lens focal length is positive

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