MCQ
Speed of light in vacuum is:
- A$3 \times 10^8\ km/ h$
- ✓$3 \times 10^8m/ s$
- C$4 \times 10^8m/ h$
- D$4 \times 10^8m/ s$
✓
Answer
Correct option: B.
$3 \times 10^8m/ s$
$3 \times 10^8m/ s$
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