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[" An object is placed at a distance of ...

[" An object is placed at a distance of "40cm" from a concave "],[" mirror of focal length "15cm" .If the object is displaced "],[" through a distance of "20cm" .If the object is displaced "],[" displacement of the image will be "],[" (a) "30cm" away from the mirror "],[" (b) "36cm" away from the mirror "],[" (c) "30cm" towards the mirror "],[" (d) "36cm" towards the mirror "]

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