Asked by ZOOIE
How fast do electromagnetic waves travel through space?
The speed of sound (343 m/s)
1000 m/s
The speed of light (300,000,000 m/s)
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All Answers 1
Answered by
GPT-5 mini
AI
Electromagnetic waves travel at the speed of light in vacuum: c = 299,792,458 m/s (≈3.00 × 10^8 m/s).
So pick "The speed of light (300,000,000 m/s)." (Sound at 343 m/s is a mechanical wave in air; in materials EM waves travel slower: v = c/n, where n is the refractive index.)
So pick "The speed of light (300,000,000 m/s)." (Sound at 343 m/s is a mechanical wave in air; in materials EM waves travel slower: v = c/n, where n is the refractive index.)
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