1.
What is the speed of light in a vacuum?
A
3 × 10⁸ m/s
B
3 × 10⁶ m/s
C
3 × 10¹⁰ m/s
D
3 × 10⁴ m/s
Answer and explanation
Correct Answer: A — 3 × 10⁸ m/s
The speed of light in vacuum is approximately 3 × 10⁸ m/s.
ObjectiveMcq
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