DSSSB 14 August 2024
Reasoning
Medium

If the water source is placed along A-B, as shown in the figure, which of the given options will be the water reflection of the given figure? https://storage.googleapis.com/nprep-f64b1.firebasestorage.app/admin/1775736784917_img-15.jpeg

Appeared in: DSSSB 14 August 2024

Explanation

  • A water reflection creates a vertical inversion (upside-down image) of the object.
  • In this process, the top and bottom parts of the figure are interchanged, while the left and right sides remain in their original positions.
  • The shaded rectangle at the bottom-right of the original figure moves to the top-right in the reflection.
  • The diagonal lines, which slope down from left to right, will appear to slope up from left to right after the vertical flip.
  • Option 3 is the only figure that accurately represents all these changes.

Why Other Options Were Wrong

  • Option A: This option shows the shaded region with an incorrect horizontal orientation, whereas it should remain vertical.
  • Option B: This option incorrectly shows a mirror (horizontal) reflection, where the left and right sides of the image are swapped. The shaded region is moved to the left side.
  • Option D: Similar to Option 2, this option also depicts a mirror (horizontal) reflection by moving the right-sided elements to the left. This is not a water reflection.

Related Visual

Visual explanation — Related Visual
Clinical Relevance
  • Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Visual Reasoning: Water Reflection as background academic context rather than a clinical decision trigger.
  • While not a clinical question, it tests abstract and logical reasoning skills.
  • Nurses use similar spatial reasoning skills when interpreting medical imaging, understanding anatomical diagrams, or reading complex monitor displays and charts.
  • Strong logical reasoning helps in quick and accurate decision-making during patient care, especially in emergency situations.
How to Approach the Question
  • First, identify the type of reflection asked for. The term 'water source' or 'water reflection' indicates a vertical flip (upside-down).
  • Imagine a horizontal line (the water surface) just below the figure. The reflection will be as if the figure is flipped over this line.
  • Focus on one key feature of the original image, such as the shaded area. Determine its new position in the reflection. In this case, the bottom-right element moves to the top-right.
  • Use this single transformation to eliminate options that do not match. For instance, any option with the shaded area on the left is incorrect.
  • Verify the orientation of other elements, like the diagonal lines, to confirm your choice. The downward slope becomes an upward slope.
  • Select the option that correctly reflects all elements of the original figure.
Concept Tested & Keywords
  • Concept Tested: Visual Reasoning: Water Reflection
  • Stem keywords: water source, water reflection, figure
  • Lead-in keywords: which of the given options

Question ID

Q50rkSTqNNtZk1s-6f7WzN

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