a student wants to project the image of candle of a flame of the Wall of a school library by using a lens
(a)which type of lens should he use and why?
(b) at what distance is the focal length of the lens should he place a candle flame as to get (i) a magnified, and (ii) a diminished image respectively on the wall? draw a diagram to show the formation of the image in each case
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A. Convex Lens should be used
B.Near the optic centre
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