Conceptual Physics

Speed of an electromagnetic

wave

c = speed of electromagnetic wave

Ȧ = angular frequency of wave

k = angular wave number of wave

μ 0 = permeability of free space

Constantμ 0 = 4ʌ×10í^7 T·m/A

İ 0 = permittivity of free space

Constantİ 0 = 8.854×10í^12 C^2 /N·m^2

What is the speed of an

electromagnetic wave in a

vacuum?

μ 0 İ 0 = (4ʌ×10í^7 )(8.854×10í^12 )

μ 0 İ 0 = 1.113×10í^17 s^2 /m^2

c = 2.998×10^8 m/s