Example 5: Water image
Last Updated On: Sat Aug 29 2026Original Figure
Answer Figures
(A)
(B)
(C)
(D)
Question
The figure is placed above the surface of water. Which answer figure is its water image?
Answer
Option C
Solution
- A water image is a reflection in a horizontal surface, so top and bottom swap while left and right stay the same.
- The triangle, which is at the top left pointing up, moves to the bottom left pointing down.
- The filled square moves from the bottom right to the top right, and the circle moves from the bottom left to the top left.
- Option C matches. Option B swaps left and right instead, and option D swaps both.