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 find the height of its image.
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Answer:Answer: Diverging mirror, -20 cm, -4.8 cm
Explanation:
The distance of the object from the mirror, u = -30 cm
The distance of the image from the mirror, v = -60 cm
To find the foca length, we will use the formula:
Since, the focal length is negative, the nature of the mirror is convex i.e. it is a diverging mirror.
The focal length of the mirror is = -20 cm
The height of the flame = 2.4 cm
The height of its image would be:
Thus, the height of the image would be 4.8 cm.
The image would be real and inverted.
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