51.
What is the primary characteristic that defines a hypersonic missile system?
52.
In which year did the India-France joint naval exercise 'Varuna' officially commence?
53.
The 'Varuna' exercise is a joint military drill primarily focused on which branch of the armed forces?
54.
Which two countries primarily participate in the 'Varuna' joint naval exercise?
55.
INSAT-4DS is an upgraded version of which previous INSAT satellite series, aimed at enhancing its capabilities?
56.
Which launch vehicle was used by ISRO for the successful launch of the INSAT-4DS satellite?
57.
ISRO successfully launched the INSAT-4DS satellite in December 2023. What is the primary purpose of the INSAT-4DS satellite?
58.
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59.
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60.
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