GS PrelimsSecurityDefence Technology2023

Consider the following statements : 1. Ballistic missiles are jet-propelled at subsonic speeds throughout their flights, while cruise missiles are rocket-powered only in the initial phase of flight. 2. Agni-V is a medium-range supersonic cruise missile, while BrahMos is a solid-fuelled intercontinental ballistic missile. Which of the statements given above is/are correct?

A

1 only

B

2 only

C

Both 1 and 2

D

Neither 1 nor 2

Correct Answer: Option D

Explanation

1. Statement 1: This statement incorrectly describes both types of missiles. Ballistic missiles are typically rocket-powered during the initial boost phase, after which they follow an unpowered, ballistic trajectory determined by gravity and atmospheric drag. Cruise missiles, on the other hand, are usually jet-propelled (using air-breathing engines) and fly at subsonic or supersonic speeds within the atmosphere throughout their flights, much like an aircraft. Therefore, Statement 1 is incorrect. 2. Statement 2: This statement mischaracterizes both missiles. Agni-V is an intercontinental ballistic missile (ICBM) with a range exceeding 5,000 km, powered by solid fuel stages; it is not a medium-range supersonic cruise missile. BrahMos is a supersonic cruise missile developed jointly by India and Russia; it is not an intercontinental ballistic missile. Therefore, Statement 2 is incorrect. 3. Since both statements are incorrect, the correct option is (D) Neither 1 nor 2.

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