GK QUESTION#1715
The first Indian meteorological rocket launched in 1963 had a diameter of how many millimetres?
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Answer
B. 75 mm
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Explanation
75 mm. India launched its first meteorological rocket in 1963 for atmospheric studies. The rocket was known as Rohini RH-75. The number 75 in RH-75 denotes the diameter of the rocket in millimetres.