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The image of a candle flame placed at a ...

The image of a candle flame placed at a distance of 30 cm from a mirror is formed on a screen placed in front of the mirror at a distance of 60 cm from its pole. What is the nature of the mirror ? Find its focal length. If the height of the flame is 2.4 cm, find the height of its image. State whether the image formed is erect or inverted.

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(a) 0.15 m, (b) 0.30 m, (c) since `m gt 0`, the image is erect
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