Q117 / 270 · NDA 2011 (Phase 2) · General Ability

Which one among the following is used to make periscope?

  • A
    Concave lens
  • B
    Concave mirror
  • Correct answer
    C
    Plane mirror
  • D
    None of the above

Solution

The correct answer is option C

Hence, the correct answer is option: 'C'.

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