Under which condetion the concave mirror
has magnification - 1
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Explanation:
The magnification of any concave mirror is 1/2. If the object is placed 6cm far from the mirror then the magnification become 1/4.
The mirror must be a spherical mirror (concave mirror) as the magnification in plane mirror is never -1 but always 1. Also convex mirror always produces images smaller than the size of the object so it's magnification is always less than 1. Hence it is a concave mirror.
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