The physics
Wavelength is the physical distance between wave crests: wave speed divided by frequency. For light and radio, speed is the speed of light (299,792,458 m/s); for sound in air it's about 343 m/s.
Wavelength of AM radio at 1 MHz
Answer: wavelength = 299.792458 m (wavelength 29,979.2458 cm).
What we know
- Wave speed: 299792458 m/s
- Frequency: 1 MHz = 1000000 Hz (converted to the unit the formula takes)
Step by step
- Given
- v = 299792458 m/s, f = 1000000 Hz
- Formula
- λ = v / f
- Substitute
- λ = 299792458 / 1000000
- Result
- λ = 299.792458 m
All results
| Wavelength | 299.792458 m |
|---|---|
| Wavelength | 29,979.2458 cm |
Open the wavelength calculator with these numbers → and change any of them.