For the picture shown above (a cluster of geometric polygon shapes to the left of a vertical dotted mirror line), which one of the following is the correct picture representing reflection with respect to the mirror shown as the dotted line?
A. The same cluster of shapes mirrored to the right side of the dotted line (left-right flipped)
B. The same cluster of shapes placed to the right but only partially flipped
C. The cluster rotated 90 degrees and placed to the right of the dotted line
D. The cluster placed below the dotted line
GATE 2022 · General Aptitude · Mirror Image · medium
Answer: Option A: The polygon cluster reflected to the right of the dotted vertical mirror line, with left-right flipped orientation and unchanged vertical arrangement.
Identify the mirror type and its effect: The dotted line is vertical. Reflection about a vertical axis causes a left-right flip. The image appears to the right of the dotted line. Up-down orientation is completely preserved.
Determine position of the reflected image: The polygon cluster sits to the left of the dotted line. The reflection appears to the right of the dotted line at the same horizontal distance from the mirror. The vertical positioning (height) of each shape is unchanged.
Match to correct answer option: Option A shows the polygon cluster on the right side of the dotted line with the shapes left-right mirrored and the same vertical arrangement as the original. This correctly represents the vertical mirror reflection.