What is the speed of light in a vacuum?
A3 × 10⁵ m/s
B3 × 10⁶ m/s
C3 × 10⁸ m/sCORRECT
D3 × 10¹⁰ m/s
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Why the answer is C, and why the others tempt you.
c ≈ 3 × 10⁸ m/s in vacuum (299,792,458 m/s exactly).
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