Question

radius of curvature of a mirror is +2/3.What type of mirror is it

Answer 1

It will be a convex mirror

Answer 2

Hi !

convex mirror
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The radius of curvature of a convex mirror , lies behind the mirror(right side)
we know that distances measured to the right from the pole , is taken as negative.
Hence, radius of curvature of a convex mirror  is taken as positive.