Physics, 20.08.2020 20:01 jacqielinehdjzj
The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by in SI units. What is the frequency of the wave
Answers: 2
![B=1.2* 10^{-6} sin [2\pi[(\frac{z}{240} ) - ( \frac{t * 10^7}{8} ) ] ]](/tpl/images/0725/8316/fe07b.png)
  in SI units. 
![B=1.2* 10^{-6} sin [2\pi[(\frac{z}{240} ) - ( \frac{t * 10^7}{8} ) ] ] \equiv A sin ( kz -wt )](/tpl/images/0725/8316/e3477.png)
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