Eh, most educated folks use light interchangeably with EM. We don’t say, “the speed of EM”....we say “the speed of light”. Light is as correct as radio. Really EM should have been the right answer.
cnemah31097
ne31097
Eh, most educated folks use light interchangeably with EM. We don’t say, “the speed of EM”....we say “the speed of light”. Light is as correct as radio. Really EM should have been the right answer.