General Knowledge
Conceptual
Medium
Question
The speed of light in vacuum is approximately __________?
A
3 × 10⁶ m/s
B
3 × 10⁸ m/s
✓ Official correct answer
C
3 × 10¹⁰ m/s
D
3 × 10⁵ m/s
Community credibility
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A
3 × 10⁶ m/s
No member explanations yet for this option.
B
3 × 10⁸ m/s
No member explanations yet for this option.
C
3 × 10¹⁰ m/s
No member explanations yet for this option.
D
3 × 10⁵ m/s
No member explanations yet for this option.
Explanation
Light travels at about 299,792 km/s (≈ 3×10⸠m/s) in vacuum.
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