E B C The electric field associated with an em wave in vacuum is given by E 140 cos kz 6 x 108t where E z and t are in volt m

Question

E B C The electric field associated with an em wave in vacuum is given by E 140 cos kz 6 x 108t where E z and t are in volt m meter and seconds respectively The value of wave vector k is a 2 m c 6 m b 0 5 m d 3 m

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