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Nirbhay, developed by DRDO, is best described as a

  1. A.Supersonic cruise missile
  2. B.Long range subsonic cruise missile
  3. C.Intercontinental ballistic missile
  4. D.Surface to air missile

Correct answer

B. Long range subsonic cruise missile

Explanation

The correct answer is B, a long range subsonic cruise missile. Nirbhay flies below the speed of sound but for a much greater distance than BrahMos, staying low to avoid radar, and it can change course in flight and loiter over an area before striking. That combination of range and manoeuvre is what a subsonic cruise missile offers, and it is powered by a small turbofan engine rather than a rocket motor.

Option A describes BrahMos, which is supersonic but of shorter range, so the two are exactly the pair examiners set against each other. Option C, an intercontinental ballistic missile, follows a high arching path outside the atmosphere and belongs to the Agni class, of which Agni-V crosses five thousand kilometres. Option D, a surface to air missile, is a weapon against aircraft, such as Akash or Trishul, and not a strike weapon at all.

Read the full article: DRDO and Defence Technology: Missiles and Labs

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