How long is a 30 Hz wavelength?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
For a 30 Hz wave, wavelength depends on the medium. In air (sound), using v = 340 m/s: λ = 340/30 ≈ 11.3 meters. For electromagnetic waves: λ = (3 × 10⁸)/30 = 10,000,000 meters or 10,000 km. This demonstrates that low-frequency waves have very long wavelengths. A 30 Hz sound wave would be a deep bass tone, while a 30 Hz radio wave would fall in the extremely low frequency (ELF) range used for submarine communication.
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