2006-09-20 12:00:34 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Physics
YES!
Sound waves are physical movement of molecules and range from maybe 15 cycles per second to maybe 90,000. Remember there are low frequency sound waves inaudible to the HUMAN ear which are perfectly audible to whales. And there are high frequency sound waves we cannot hear but bats use for sonic radar.
Radio waves are electromagnetic and do not rely on the movement of molecules to propogate.
However as far as NUMBERS are concerned you can have Sound waves and Radio waves in the range from about 20,000 to 30,000 cps.
2006-09-20 12:12:15 · answer #1 · answered by knoWall 4 · 0⤊ 0⤋
Very low frequency, that is 3000 to 30000 Hz radio waves penetrate sea water, so they're used to communicate with submerged submarines. The Omega system used (uses?) around 12 Khz, and a sound wave of this frequency is clearly audible; it's in the 5th octave above middle C.
2006-09-20 13:59:56 · answer #2 · answered by zee_prime 6 · 0⤊ 0⤋
Sound waves are simply the propagation of a physical displacement through matter. They can be at any frequency at which you can get matter to vibrate. Surface Acoustic Wave (SAW) filters have been built which operate in the hundreds of megahertz.
Radio waves are another name for electromagnetic waves. Their frequency range is practically unlimited. A slang phrase to exaggerate the frequency coverage of a radio is 'DC to daylight.' While DC (direct current) is not an electromagnetic wave, it can have any frequency higher than zero.
2006-09-20 18:22:07 · answer #3 · answered by Frank N 7 · 0⤊ 0⤋
sure!
but, well... the proper name is not "radio", but "electromagnetic" waves.
at such a low frequency as 20Hz, an EM wave will have a wavelength of 15'000 kilometers (9'400 miles) and very little energy.
at 20'000 Hz, wavelength still a very big 15 kilometers (9.4 miles), and also very low energy. This is the frequency of maritime mobile communications.
what we call "radio" waves are EM waves with frequencies of 530kHz to 1.6MHz (AM radio), or 88 to 108 MHz (FM radio).
as you know, we don't have any organs to detect such "low frequency" EM waves. The only ones we can detect are in the frequencies 1E14 to 1E15 Hz: this is what we call "visible light".
Hope this helps
2006-09-20 12:17:32 · answer #4 · answered by AntoineBachmann 5 · 0⤊ 0⤋
I would guess Yes! I'm afraid they would drive everyone mad , because they could hear them! And of course, the closer you were to the transmitter,,the LOUDER it would be! :-)=
2006-09-20 12:04:54 · answer #5 · answered by Jcontrols 6 · 0⤊ 2⤋