Practicing Success
A plane electromagnetic wave of frequency 50 MHz travels in free space along the x-direction. If at a particular point in space and time, $\vec E=(9.3\hat j)Vm^{-1}$, what is $\vec B$ at this point? |
$(3.1 × 10^{-8}\hat i) T$ $(3.1 × 10^{-8}\hat j) T$ $(2.8 × 10^{8}\hat k) T$ $(3.1 × 10^{-8}\hat k) T$ |
$(3.1 × 10^{-8}\hat k) T$ |
The correct answer is Option (4) → $(3.1 × 10^{-8}\hat k) T$ |