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Whatever the object's position, a concave lens always produces a virtual, erect, and
diminished image. Let us now draw ray diagrams to show where the images are
when the object is placed - at infinity, between O and F1, and anywhere between
infinity and O.
When the Object is at Infinity
The image is: formed at F erect virtual diminished.
1
When the Object is placed at any Position between O and infinity
The image is: formed between O and F1 erect virtual diminished
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