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MCQ
The speed of electromagnetic waves in vacuum is:
Physics
A 3 × 10^8 m/s
B 3 × 10^6 m/s
C 3 × 10^10 m/s
D 3 × 10^5 m/s
Explanation

All electromagnetic waves travel at c = 3 × 10^8 m/s in vacuum.

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