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A small candle 2.5 cm in size is placed 27 cm in front of a concave mirror of radius of curvature 36 cm. If the candle is moved closer to the mirror, how would the screen have to be moved ?

$\begin{array}{1 1} \text{screen should also be closer to the mirror} \\ \text{screen should moved away from the mirror } \\ \text{screen should be moved obliquely through an angle } \\ \text{None of the above} \end{array} $

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