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How would you create a longer wave length than radio waves?
Seeing what the maximum wavelength at the lowest energy would be.
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- Dr. RLv 71 decade agoFavorite Answer
The military talks to submarines with extremely low frequency (ELF) EM radiation. For the antenna, they bury cable underground in loops miles in diameter. It's needed to penetrate sea water.
- Anonymous1 decade ago
yes lower the frequency.
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