(a) Draw labelled ray diagrams for each of the following cases to show the position, nature and size of the image formed by a convex lens when the object is placed (i) between its optical centre (O) and principal focus (F) (ii) between F and 2F (b) How will the nature and size of the image formed in the above two cases, (i) and (ii) change, if the convex lens is replaced by a concave lens of same focal length ?
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school ke teacher se puch lena wo with straight diagram se bataenge
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