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Sahay Sir > Question Answers > JEE Mains Physics 2002-2019 Solved Video Solutions > Chapter 16 - Optics > The graph shows how the magnification m produced by a convex thin lens varies with image distance v. What was the focal length of the used ?

The graph shows how the magnification m produced by a convex thin lens varies with image distance v. What was the focal length of the used ?

The graph shows how the magnification m produced by a convex thin lens varies with image distance v. What was the focal length of the used ?