Question

What is the minimum distance between an object and it's real image formed by convex lens

Answer 1

Thus, for real image by converging lens the minimum distance between object and image should be 4f, where f is focal length of the lens.

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Answer 2

Answer:

to form real image the object shouldn't be I between focus and optical center

Anywhere else in front of the lens we can put the object for the formation of real image

Hope it will help you