If a mirror is placed on the line MN, then which of the answer figures is the right image of the given figure?

A vertical mirror is placed, so the object at the left will appear at the right and vice-versa. So, the circle on the left will appear on the right hand side and square will appear on the left side in the mirror image, hence second option is eliminated.

Also, the two horizontal lines at the bottom are pointing towards left, thus in the mirror image, they will point right, and thus first and last options are also eliminated.

=> Ans - (C)