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9.1 A small candle, 2.5 cm in size is placed at 27 cm in front of a concavemirror of radius of curvature 36 cm. At what distance from the mirrorshould a screen be placed in order to obtain a sharp image? Describethe nature and size of the image. If the candle is moved closer to themirror, how would the screen have to be moved?

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