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An electromagnetic wave travelling in the x-direction has frequency of 2×1014Hz and electric field amplitude of 27Vm1. From the options given below, which one describes the magnetic field for this wave ?

B(x,t)=(3×108T)ˆjsin[2π(1.5×108x2×1014t)]B(x,t)=(9×108T)ˆksin[2π(1.5×106x2×1014t)]B(x,t)=(9×108T)ˆisin[2π(1.5×108x2×1014t)]B(x,t)=(9×108T)ˆjsin[1.5×106x2×1014t)]

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