Yes. Light IS electromagnetic waves.
Yes, they do.
'Radio' waves are physically and electrically identical to light waves except for their frequency (wavelength), and they travel at the same speed as light does.
All electromagnetic waves travel through space at the "speed of light". Light is one form of electromagnetic waves.
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the speed of lightspeed of light
Radio-waves, like light, are electromagnetic waves and hence travel at the speed of light.
All electromagnetic waves travel at the same speed in a vacuum -- the speed of light.
speed of light
The light wave, which is electromagnetic energy, is the fastest wave. The speed of light, which is a physics constant, is the speed of light in a vacuum, and no object with mass can be accelerated to this speed.
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All light travel at the same speed.
Light waves do not need a medium to propagate. Sound waves cannot travel without a medium. Light waves always travel at the speed of light that is 3*108m/s.