1 light year = ?
Correct answer: C. 9.5×1012 km
- A. 9.5×106 km
- B. 9.5×109 km
- C. 9.5×1012 km
- D. 9.5×1018 km
Explanation
A light-year is the distance light travels in one year, approximately 9.46 × 10¹² kilometres. It is a unit of distance, not time.
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