Q1. India commissioned INS Aridhaman during the week of April 6-12, 2026. What is the approximate range of the K-4 ballistic missiles carried by this submarine, and which class does it belong to?
A 750 km, Scorpene class
B 1,500 km, Kalvari class
C 2,500 km, Akula class
D 3,500 km, Arihant class Correct
Explanation
INS Aridhaman is India's third nuclear-powered ballistic missile submarine (SSBN) of the Arihant class, with 70 percent indigenous content and K-4 submarine-launched ballistic missiles with a range of about 3,500 km, significantly strengthening India's sea-based second-strike nuclear deterrent.