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A candle of 3 \(cm\) high is placed at a distance of 21 \(cm\) from a concave mirror which produces a real image \(3\) \(cm\) high. Find the position of the image.
![303244.gif](https://resources.cdn.yaclass.in/d1d2681e-0b86-4266-8251-20ac5ce715d9/303244.gif)
The image is formed \(cm\) in front of the concave mirror.
[Note: Enter your answer in whole number]