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The magnetic field in the plane electrom...

The magnetic field in the plane electromagnetic wave is given by
`B_(z)=2xx10^(-7) sin(0.5xx10^(3)x+1.5xx10^(11)t)` tesla.
The expression for electric field will be:

A

23.9 Hz

B

13.9 Hz

C

33.9 Hz

D

12.9 Hz

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