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Wavelength for Low Frequency Radiation

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Can someone explain what is the wave length for extremely low frequency radiation (ELF) and television waves. Please show how to work them out. thanks

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174 words with references to explain how to find the wavelength using ELF and television waves.

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Extremely low frequency (ELF) radiation has frequencies in the 1 Hz to 300 Hz range, so that the respective wavelengths are betwen 300,000 km and 1000 km.
(recall that wavelength = speed of light / frequency, and speed of light = 300,000 km/s)
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