allerySLV ആദ്യത്തെ വിജയകരമായ ഉപഗ്രഹ വിക്ഷേപണം നടത്തിയ വർഷം?
A1975
B1979
C1983
D1980
Answer & Solution
Correct answer: D. 1980
1979 ലെ ആദ്യ SLV വിമാനം ഭ്രമണപഥത്തിലെത്തുന്നതിൽ പരാജയപ്പെട്ടു, അതേസമയം 1980 വിക്ഷേപണം രോഹിണി സീരീസ്-I ഉപഗ്രഹത്തെ ഭ്രമണപഥത്തിൽ എത്തിച്ചു.
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