Draw ray diagrams to show image formation by a convex lens in the following cases.
(a) the object is at 2F
(b) the object is between F and 2F
(c) the object is beyond 2F
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Solution
(a) The object is at 2F.
A real, inverted image is formed at 2F.
(b) The object is between F and 2 F
A real, inverted, magnified image is formed beyond 2F.
(c) The object is beyond 2F.
A real, inverted, diminished image is formed between F and 2F.