An object of height \( 3 \mathrm{~cm} \) is placed on the principal axis of a concave mirror. Th...

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An object of height \( 3 \mathrm{~cm} \) is placed on the principal axis of a concave mirror. The distance of the object from the mirror is \( 15 \mathrm{~cm} \), and the image formed is \( 30 \mathrm{~cm} \) away from the mirror on the same side of the mirror as the object. Calculate the height of the image formed.
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