According to the given figure, if the water source is located along A-B, then which of the given options will be the water image of the given figure?

A B

1. A

   Option A

2. B

   Option B

3. C

   Option C

4. D

   Option D

Appeared in: DSSSB October 2024

Explanation

• A water image is a reflection across a horizontal axis, meaning the figure is flipped vertically (upside down).
• In this transformation, the top and bottom parts of the figure are interchanged, while the left and right sides remain in the same position.
• The vertical rectangle on the left side of the original figure will remain on the left side in the water image.
• The diagonal bars, originally slanting from top-left to bottom-right (), will be inverted to slant from bottom-left to top-right (/) in the water image.
• Option A correctly shows the vertical rectangle on the left and the inverted diagonal bars, matching the rules of a water image.

Why Other Options Were Wrong

• Option B: This option likely represents a mirror image (a reflection across a vertical axis), where the left and right sides of the figure are swapped. This is incorrect for a water image, which is a reflection across a horizontal axis.
• Option C: This option might show a 180-degree rotation of the figure. A rotation alters both the horizontal and vertical positions of the elements, which is different from the simple top-to-bottom flip of a water image.
• Option D: This option may show an incorrect or partial reflection. For example, it might keep the orientation of the diagonal lines the same or only flip one part of the image, thus failing to follow the consistent top-to-bottom inversion rule for the entire figure.

Related Visual

Clinical Relevance

• Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Spatial and Logical Reasoning (Water Images) as background academic context rather than a clinical decision trigger.
• This question tests abstract and spatial reasoning, a component of general intelligence assessed in nursing entrance exams.
• Strong spatial reasoning skills are valuable in clinical practice for tasks such as understanding anatomical diagrams, interpreting medical imaging (like X-rays), and correctly orienting equipment.
• What if the question asked for a mirror image? If a mirror was placed vertically to the right of the figure, the left and right sides would be swapped. The vertical rectangle would appear on the right, and the diagonal bars would appear on the left.

How to Approach the Question

• First, understand the question. 'Water image' means a vertical reflection (flipping upside down) across a horizontal line.
• Remember the key rule: Top becomes bottom, and bottom becomes top. The left and right sides do NOT change.
• Mentally divide the figure into its main components. Analyze the left side (vertical rectangle) and the right side (diagonal bars) separately.
• Apply the rule to the left side: The rectangle stays on the left.
• Apply the rule to the right side: The diagonals that slant down and to the right () must be inverted to slant up and to the right (/).
• Combine these transformed parts to form a complete mental picture of the water image.

Concept Tested & Keywords

• Concept Tested: Spatial and Logical Reasoning (Water Images)
• Stem keywords: water image, figure, reflection, A-B
• Lead-in keywords: which of the given options
• Negative lead-in flag: false

Question ID

QYyT4gc5EkBpzTqP1fsV43

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