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GATE 2021 PH – Question 2

General Aptitude · Spatial Aptitude: Spatial Reasoning and Visualization · 1 mark · Multiple choice

The word PHYLAXIS is shown above the horizontal X-axis in the figure. Which option is its mirror image about the X-axis?

Diagram for GATE 2021 PH question 2
  1. Figure (A)
  2. Figure (B)
  3. Figure (C)
  4. Figure (D)

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Show answer and explanation

Correct answer: (B) Figure (B)

Explanation

Reflection about a horizontal axis maps $(x,y)$ to $(x,-y)$. The left-to-right order of the letters therefore stays the same, while each letter is inverted vertically. Applying this to P, H, Y, L, A, X, I and S gives the image in option B.

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