You are given three mirrors of equal size_concave,convex and plane. How will you identify them without touching their surfaces?
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To identify whether a given mirror is plane convex or concave, hold it near the face and observe the image formed by it .
● If the image is erect of the same size and does not change in size on moving the mirror the given mirror is a plane mirror .
● If the image is erect diminished and remains erect on moving the mirror away from the face the given mirror is a convex mirror .
● If the image is erect and magnified and it gets inverted on moving the mirror away from the face the given mirror is a concave mirror .
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