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An object is placed at a distance of f/2 from a convex lens of focal length f. The image will be

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a
at one of the foci, virtual and double its size
b
at 3f/2 real and inverted
c
at 2f, m virtual and erect
d
none of these

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detailed solution

Correct option is A

1v-1-f/2=1f 1v=1f-2f=-1f Again,  vu=-ff/2=2


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