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 on the left will appear right in reverse position and vice-versa.

So the rectangle in the middle will stay at the middle at horizontal position, thus the second and last options will be eliminated.

Also, in the question figure, the triangle at top left (pointing upwards) will still point upwards but at top right position, hence third option is the right image.

=> Ans - (C)