Can anyone tell me what a EM wave is ?
As in ... Radio Waves have the shortest wavelength of all EM waves. True Or False ?
2007-01-15 04:43:41 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Physics
EM as you know stands for an Electro-Magnetic wave.
EM -wave is a disruption of space caused by change in electric and magnetic fields. The electric and magnetic phenomena are believed to be a part of one electromagnetic phenomenon. When an electric charge is moving it generated an electric field. Varying magnetic field induces electric current.
Interesting is that the forces of electric field are always perpendicular to the forces of magnetic field they produce and of course the reverse is true.
Finally electromagnetic wave always consists of an electric field component always traveling with a magnetic field component and they are 90 degrees apart in space as they travel together.
Light and radio waves are good examples of EM waves.
I hope it helps.
2007-01-15 04:46:22 · answer #1 · answered by Edward 7 · 0⤊ 0⤋
EM wave is an Electromagnetic Wave. Radio waves have the longest wavelength of the EM wave spectrum.
2007-01-15 12:54:28 · answer #2 · answered by maidmaz 3 · 0⤊ 0⤋
Gamma rays have the shortest wavelength Radio are typically the longest.
2007-01-15 12:47:12 · answer #3 · answered by Gene 7 · 0⤊ 0⤋
EM wave stands for electromagnetic wave, however, this is not a question, this is a quiz.
2007-01-15 12:54:15 · answer #4 · answered by Wodneh W 2 · 0⤊ 0⤋