Mirror and Water Images Questions and Answers

Answer: C

The mirror image is figure 3.

The mirror line AB is vertical and stands at the right edge, so the reflection swaps left and right and keeps top and bottom. The four corner symbols therefore change sides in their rows: the filled square goes from top left to top right, the open circle from top right to top left, the open square from bottom left to bottom right and the filled circle from bottom right to bottom left. Inside the triangle, the black wedge at the lower right moves to the lower left, the black sector on the left of the circle moves to the right, the filled up-arrow moves from the left end of the base to the right end and the open down-arrow from the right end to the left.

Figure 1 flips the arrows and corners but leaves the wedge and the circle's black sector on their original sides. Figure 2 has the right positions but swaps the fills of the two arrows. Figure 4 turns the corner symbols through 180 degrees instead of reflecting them, so the symbols sit in the wrong rows.

Answer: C

Option (C) is the mirror image. A mirror at the side of the figure swaps left and right and leaves top and bottom unchanged. The given figure has a diagonal rising from the bottom left to the top right, and a short vertical line from the top edge near the left that turns into a sloping line running down to the right edge. After reflection the diagonal runs from the top left to the bottom right, and the vertical line sits near the top right and turns into a line sloping down to the left edge. That is the square in option (C). Option (A) puts the bent line at the bottom right and option (B) at the bottom left, so they do not show the bend at the top. Option (D) has no bend at all.

Answer: A

The mirror MN is a vertical line at the right of the figure, so the image is the figure turned over from left to right, with the same heights and the same sizes. The ellipse that lies at the upper right of the figure therefore appears at the upper left of the image, and the pair of small circles at the top left goes to the top right. Option (A) shows exactly this. Option (D) is the figure turned upside down instead, and options (B) and (C) change the sizes or the positions of some of the circles, so they are not the mirror image. The answer is option (A).

Answer: A

The keyed answer is option (A). When a mirror is held at the right side of a figure, the image is reversed left to right while the top and bottom stay in place, so every feature on the left of the original appears on the right of the image. Among the four drawings only the first matches that lateral reversal, according to the official key. Option (C) is partly cut off in the booklet itself, and the other two drawings keep some features on their original side, which is what a mirror at the right does not do.