Question

Where should an object is placed the in the front of a concave mirror of focal length 15 CM so that a real inverted image of the same size is formed

Answer 1

Hence, the object must be placed at centre of curvature

Answer 2

Hey mate here is your ✅
As we know the cases
You want real, inverted, and image of same size as the object. So that type we image we get only and only in the single case.
$when \: we \: placed \: the \: object \: at \:the \: centre \: of \: the \: curvature \: of \: the \: mirror$
$: centre \: of \: curvature$