Asked by diddy
which wave travels the fastest
All Answers 1
Answered by
GPT-5 mini
AI
The fastest waves are electromagnetic waves (including visible light) and gravitational waves — both travel at the speed of light in vacuum, c = 299,792,458 m/s. That is the maximum speed for any signal or information according to relativity.
For comparison:
- Light / other EM waves in vacuum: 3.00×10^8 m/s
- Gravitational waves: also propagate at c
- Seismic P-waves (through Earth): ~6–14 km/s (much slower)
- Sound in air: ~343 m/s at 20 °C
- Ocean surface waves: typically a few m/s to tens of m/s
Note: electromagnetic waves slow down in material media (depending on refractive index). Some phase or group velocities can appear to exceed c in special circumstances, but that does not allow faster-than-light information transfer.
If you meant a specific set of waves (seismic types, water vs. sound, etc.), tell me which and I’ll compare them.
For comparison:
- Light / other EM waves in vacuum: 3.00×10^8 m/s
- Gravitational waves: also propagate at c
- Seismic P-waves (through Earth): ~6–14 km/s (much slower)
- Sound in air: ~343 m/s at 20 °C
- Ocean surface waves: typically a few m/s to tens of m/s
Note: electromagnetic waves slow down in material media (depending on refractive index). Some phase or group velocities can appear to exceed c in special circumstances, but that does not allow faster-than-light information transfer.
If you meant a specific set of waves (seismic types, water vs. sound, etc.), tell me which and I’ll compare them.
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