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 order of the circles will remain same, i.e. larger circle will stay at top and smaller at bottom , thus the second and last options will be eliminated.

Also, in the question figure, both the circles are on the left side, hence they will appear on right side, hence first option is the right image.

=> Ans - (A)