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electromagnetic wave is not a sound wave
em wave is generated by photons which emitter the energy in the form of light
No. Sound is a mechanical wave, not an EM wave.
radio wave
Their wavelengths start at about 10pm = 10-11m and continue getting shorter for the entirety of the EM spectrum.
all of the em spectrum is measured i waves
EM waves stand for Electromagnetic waves.
visible light
They're the same. EM stands for electromagnetic.
Sound is a mechanical wave, not an electromagnetic wave.
The shorter the wavelength of a wave, the higher its energy.
No, it's not. EM wave is a single unit, and it cannot exist without ether of components (electric, magnetic).