object is kept at a distance 20 cm front of a mirror images formed on the same side of the mirror at a distance 30 to find the nature and length of a mirror
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Explanation:
nature of the image: As the image is formed in the same side of the mirror, it is a concave mirror, so the nature of the image is erect and virtual
length = v / u
= 30 / 20
= 1.5 cm
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