9.Rohit focused the image of a candle flame on a white screen using a convex lens.He noted down the position of the candle,screen
and lens as under
Position of candle=26cm
Position of convexlens=50cm
Position of screen=74cm
(a)What is the focal length of convex lens?
(b)Where will the image be formed if he shifts the candle towards
the lens at a position of 38cm?
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