What is the speed of all electromagnetic waves in a vacuum? - ATOMIC STRUCTURE Quiz | GKFix.in

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Question

What is the speed of all electromagnetic waves in a vacuum?

A. 2.0 × 10^8 m/s
B. 1.5 × 10^8 m/s
C. 3.0 × 10^8 m/s
D. 4.0 × 10^8 m/s

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