Prelims · 8 Mental Ability · 8.14 Non-verbal reasoning

8.14.1 Mirror and water images

A mirror held upright beside a figure swaps left and right; a water surface below it swaps top and bottom — so a letter survives a mirror only if it has a vertical line of symmetry, and survives water only if it has a horizontal one.

  • APPSC Group 2 · Prelims
  • Standard level
  • 7 min read
  • Full course

Key terms

  • mirror image
  • water image
  • vertical mirror
  • horizontal mirror
  • line of symmetry
  • symmetric letters
  • palindrome
  • lateral inversion
  • mirror clock
  • 11:60 rule
  • water clock
  • rotation by 180 degrees

What this note covers

  1. Core factsFoundation
  2. ExplainedStandard
  3. DeeperAdvanced
  4. Common trapsFoundation
  5. Quick revisionFoundation

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