Science · Science
रोहिणी श्रेणी के प्रथम उपग्रह (RS-1) का सफल प्रक्षेपण किस वर्ष किया गया था?
- 11979 ई. में
- 21983 ई. में
- 31975 ई. में
- 41980 ई. में✓
सही उत्तर देखें
1980 ई. में
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