Science, asked by mukeshgurjarmp1356, 1 month ago

15) The focal length of a concave lens is taken negati

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Answered by devanshgidwani28

you can easily verify that the focal length is in the positive x direction for a convex lens while it is along the negative x direction for a concave lens . So f is positive for a convex lens and negative for a concave lens .

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15) The focal length of a concave lens is taken negati​

Answers

15) The focal length of a concave lens is taken negati