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The speed of electromagnetic waves in a vacuum __________. is larger for higher energies is the...

The speed of electromagnetic waves in a vacuum __________.

is larger for higher energies
is the same for all waves regardless of wavelength
is the same as the speed of sound
is larger for longer wavelengths
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Answer #1

The speed of electromagnetic waves in vacuum is

c = 3 * 10^8 m/s

so the speed does not depend on any other quantities like wavelength or frequency.

Answer is

is the same for all waves regardless of wavelength

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