[" 5.In an electromagnetic wave in free space the "],[" root mean square value of the electric field is "],[E_(rms)=6V/m" .The peak value of the magnefic "],[" field is "],[[" (1) "1.41times10^(-8)T," (2) "2.83times10^(-8)T],[" (3) "0.70times10^(-8)T," (4) "4.23times10^(-8)T]]