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UPSC PYQPrelims 2022

Civil Services Examination · Question 34

Which one of the following statements best reflects the idea behind the "Fractional Orbital Bombardment System" often talked about in media?

  1. A hypersonic missile is launched into space to counter the asteroid approaching the Earth and explode it in space.
  2. A spacecraft lands on another planet after making several orbital motions.
  3. A missile is put into a stable orbit around the Earth and deorbits over a target on the Earth.
  4. A spacecraft moves along a comet with the same speed and places a probe on its surface.
Show answer & explanation

Answer: (C) A missile is put into a stable orbit around the Earth and deorbits over a target on the Earth.

Explanation

FOBS places a warhead in low orbit and deorbits it onto a target, evading early-warning systems; it was in the news after China's 2021 hypersonic test.