Four times the focal length of the lens.
Class 12 Physics
Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.
What is the minimum distance, in terms of focal length of lens, between an object and its real image formed by a convex lens?
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The minimum distance between an object and its real image formed by a convex lens is twice the focal length. This occurs when the object is placed at twice the focal length from the lens.
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