Question

Draw the ray diagram of image formation by a convex mirror when the object is placed at its centre of curvature(C).

Answer 1

convex mirror always produces virtual image and the object cannot be placed on centre of curvature not on Focus

Answer 2

Really convex mirror!
Convex's mirror C is +ve and so the opaque side of the mirror will not result in any image... Only two cases are possible at infinity & at finite distance.

And if u meant concave than thats in the pic

I HOPE IT HELPS....