Question

When an object approaches a convex lens from Infinity towards its focus the image formed by it​

Answer 1

Answer:

When an object is kept at one focus, u=f, the image is formed at infinity, v=∞. Therefore, from the above situations, it is clear that as the object approaches the focus the image moves away from the lens. Therefore, the image moves away from the lens as the object moves from infinity to focus.

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