MCQ
Speed of electromagnetic waves in vacuum is:
- ✓$3 \times 10^8 m / s$
- B$3 \times 10^7 m / s$
- C$3 \times 10^6 m / s$
- D$3 \times 10^10 m / s$
✓
Answer
Correct option: A.
$3 \times 10^8 m / s$
(a)$3 \times 10^8 m / s$
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